The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.

The Dance Group will participate in 1-hour group improvisational dance lessons 2x/week for 12 weeks. Improvisational dance classes are grounded in 4 principles that shape the tone of the class and result in a sense of social belonging: non-judgment, non-competitiveness, curiosity, and playfulness. The following training strategies are used to maintain: active imagination, variability, and pacing.

Dance Group: Active imagination refers to working with imagery and is crucial in improvisatory practice. Verbal auditory cues are used to create movement scenarios that cue or activate the motor imagination. Variability means the improvisational method does not aim to learn a specific movement pattern and habituate to it. Cues are delivered quickly, one after another. Within an average of two minutes, tasks requiring quicker decision-making are introduced. Pacing is the rate at which new movement prompts are presented. Quick changes in pace avoid defaulting to habitual responses, thereby facilitating new movement options. Participants cannot rely on copying another, memory, or anticipation to address the motor problem.

The Non-group dance intervention is designed to capture the same dance movement and auditory stimuli as the group class without social interaction. Recordings of the dance instructor teaching a dance class will be played. This will ensure participants hear comparable music and receive comparable verbal auditory cues to prompt dance movements that students in the group class will hear, without interacting with other people. Improvisational dance is particularly suited for this means of delivery because the primary method of instruction is verbal auditory cueing. Participants will be asked to follow the same schedule as participants in the Dance Group arm and complete 2 one-hour dance sessions each week.

Non-Group Dance: The caregiver will be asked to stay in the area while the subject is dancing. A video camera will be affixed in an upper corner of the room to record individual dance sessions. This recording will yield data that a trained student or staff member can view and code to document movement fidelity (e.g., that the person has responded to the dance prompts and for the purpose of comparing the amount of quality of movements that occur in individual vs. group dance settings). For the first two sessions, study staff would observe the full dance session from outside the room to be sure that instruction was clear and adherence was attained, and that no safety issues arise.

The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

Social Group: The social group will consist of improvisational party games to foster curiosity and playfulness, use imagery, and encourage non-judgment. Games that may be used include 'Balderdash', 'Wise and Otherwise', 'Charades', 'Pictionary', and 'Tell Me A Story' cards. These games will also use the same core strategies as the dance group. Games will be varied within an hour-long session to incorporate pacing and variability into the social group, akin to the dance group. The social group will occur 2x/week for 1 hour each time and be led by the same instructors who lead the Dance Group, to control for effects of personality of the group leader.

A No Contact condition captures the condition of no added social contact and no added dance movement. Participants randomized to the No Contact condition will be asked to continue their current disease management and lifestyle for 12 weeks

No Contact: The condition of not receiving an intervention can have ethical implications and reduce retention rates. Therefore, these participants will be invited to join in a weekly community improvisational dance class after they complete the study, for as many sessions as they would like.