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This study will examine how real-time functional magnetic resonance imaging (rt-fMRI) feedback can be used to modulate brain activation in the context of smoking cues in order to resist craving. Participants will complete a total of three fMRI scanning sessions with a cue suppression task with or without neurofeedback training (NFT). Participants will be randomized to an active group (active NFT) or a control group (no NFT) during the scanning sessions. At the end of the third session, all participants will complete a validated smoking lapse laboratory paradigm to evaluate effects of NFT on smoking behavior.
Smoking is the greatest preventable cause of mortality and a significant economic burden. Even with the best available treatments, most smokers relapse within days or weeks after a quit attempt. Nicotine replacement therapy, the most widely used pharmacotherapy, yields end of treatment quit rates of <25% suggesting that managing nicotine withdrawal is not sufficient. A smoker's response to smoking cues is one factor that increases risk of relapse. This study will examine how real-time functional magnetic resonance imaging (rt-fMRI) feedback can be used to modulate brain activation in the context of smoking cues in order to resist craving. First, we will conduct a pilot study in 12 smokers for technical development and to evaluate the feasibility of the proposed study procedures. Participants will complete a total of three fMRI scanning sessions with a cue suppression task with or without neurofeedback training (NFT). Participants will be randomized to an active group (active NFT) or a control group (no NFT) during the scanning sessions. At the end of the third session, all participants will complete a validated smoking lapse laboratory paradigm to evaluate effects of NFT on smoking behavior. Upon successful completion of the technical development phase, we will proceed to a proof-of-concept phase, which will recruit 72 smokers to evaluate the efficacy of NFT for smoking behavior.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Real-time neurofeedback training group | Experimental | We propose to use rt-fMRI neurofeedback training to help smokers consciously modulate activation in areas related to cravings and self-control in order to improve control smoking urges. In this arm, participants will complete four sessions: an intake session and 3 neurofeedback scanning visits. The primary outcome is the ability to resist smoking during a validated smoking lapse paradigm. Secondary outcomes include changes in brain activity in areas related to craving and self-control, and self-reported craving for cigarettes. |
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| No-feedback control group | No Intervention | We propose to use rt-fMRI neurofeedback training to help smokers consciously modulate activation in areas related to cravings and self-control in order to improve control smoking urges. In the control group arm, participants will complete four sessions: an intake session and 3 scanning visits with no neurofeeback. The primary outcome is the ability to resist smoking during a validated smoking lapse paradigm. Secondary outcomes include changes in brain activity in areas related to craving and self-control, and self-reported craving for cigarettes. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Realtime biofeedback using fMRI | Behavioral | Real-time fMRI (rt-fMRI) allows for rapid analysis of brain activation while an individual is actively performing a task, and can be used to provide real-time neurofeedback to individuals during fMRI scanning. Using neurofeedback, individuals can learn to modulate activity in specific regions of the brain. We propose to use rt-fMRI neurofeedback training to help smokers consciously modulate activation in areas related to cravings and self-control in order to improve control smoking urges. Participants will complete four sessions: an intake session and 3 scanning visits. The primary outcome is the ability to resist smoking during a validated smoking lapse paradigm. |
| Measure | Description | Time Frame |
|---|---|---|
| Smoking Lapse Paradigm | Time (sec) to first cigarette during a 50 minute monitored smoking lapse period in smoking laboratory | Study session 3 (scan day 3) |
| Measure | Description | Time Frame |
|---|---|---|
| Cue induced brain signal change | Change in mean percent signal change for Cue minus Neutral contrasts in activated brain regions | Study session 3 (scan day 3) |
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Inclusion Criteria:
Exclusion Criteria:
Smoking Behavior:
Alcohol/Drugs:
Medication:
Current use or recent discontinuation (within the past 30 days at the time of Intake) of:
Smoking cessation medication (e.g., Zyban, Wellbutrin, Wellbutrin SR, Chantix, NRT);
Anti-psychotic medications;
Any medication that could compromise participant safety as determined by the Principal Investigator and/or Study Physician;
Daily use of:
Opiate-containing medications for chronic pain.
Medical/Neuropsychiatric:
fMRI-Related:
General Exclusion:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | United States |
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| ID | Term |
|---|---|
| D014029 | Tobacco Use Disorder |
| ID | Term |
|---|---|
| D019966 | Substance-Related Disorders |
| D064419 | Chemically-Induced Disorders |
| D001523 | Mental Disorders |
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The proposed study will evaluate the effects of rt-fMRI neurofeedback training on the ability to resist craving for cigarettes. The study will be conducted in two phases: a technical development phase and a proof-of-concept phase focused on efficacy. The technical development phase will be completed before beginning the proof-of-concept phase. Eligible consenting treatment-seeking smokers complete an intake session and then be randomized to an active NFT group or a control group. Both groups will complete three scanning sessions, followed by a smoking resist evaluation.
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Treatment-seeking smokers complete an intake session and then be randomized to an active NFT group or a control group.
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