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The present study aims to examine the feasibility of a computerized treatment for social anxiety disorder. To evaluate the efficacy of the IBM protocol the investigators have developed in reducing evaluation and social threat biases, they will conduct a two-arm randomized controlled trial. Individuals with a diagnosis of social anxiety disorder (N = 50) will be randomized to one of two conditions: 1) IBM or 2) progressive muscle relaxation. Each condition will consist of eight 25 minute treatment sessions. Participants will complete two sessions per week for four weeks and will be administered assessments at pre-treatment, one week post-treatment and at 3-month follow-up. It is hypothesized that: 1) IBM will lead to greater reductions in social anxiety symptoms than the PMR condition; 2) IBM will lead to greater reductions in depression and anxiety than the PMR condition; 3) IBM will lead to greater reductions in threat interpretations and greater increases in benign interpretations than the PMR condition; 4) The effects of condition on social anxiety symptoms will be mediated by changes in social anxiety-related interpretation bias; and 5) The effects of condition will be maintained at the 3-month follow-up assessment.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Interpretation Bias Modification | Experimental | Treatment consists of eight brief sessions consisting of two tasks. In Task 1, participants read unique scenarios ("You notice someone pointing in your direction"). A sentence meant to resolve the ambiguity will appear ("This person thinks they reco_nize you"). After filling in the missing letter, the interpretation is reinforced by requiring the participants to correctly answer "yes" or "no" to a comprehension question ("Is this person mocking you?"). In Task 2, participants are shown a word denoting a threatening ("mocking") or benign ("cheerful") interpretation. Participants are presented with an ambiguous scenario ("You hear people at a nearby table laughing") and asked to denote whether the word and the sentence are related. Participants will receive feedback based on their response. |
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| Progressive Muscle Relaxation | Active Comparator | Participants will receive eight brief sessions of PMR. They will listen to a PMR script (Kassinove & Tafrate, 2002). Participants will be asked to make sure they are sitting comfortably, close their eyes, and systematically tense and release different muscle groups. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Interpretation Bias Modification | Behavioral | Eight 10-25 minute sessions of interpretation modification to reduce negative interpretation biases related to negative evaluation. |
| Measure | Description | Time Frame |
|---|---|---|
| Social Phobia Inventory (SPIN; Davidson, 1995) | Measures past-week social anxiety symptom severity | change from baseline at one-week post treatment and 3-months post-treatment |
| Measure | Description | Time Frame |
|---|---|---|
| Beck Depression Inventory (BDI-II; Beck, Steer, & Brown, 1996) | Measures depressive symptom severity | change from baseline at one-week post treatment and 3-months post-treatment |
| Beck Anxiety Inventory (BAI; Steer & Beck, 1997) |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Florida State University, Department of Psychology | Tallahassee | Florida | 32306 | United States |
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| ID | Term |
|---|---|
| D000072861 | Phobia, Social |
| ID | Term |
|---|---|
| D010698 | Phobic Disorders |
| D001008 | Anxiety Disorders |
| D001523 | Mental Disorders |
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| ID | Term |
|---|---|
| D001326 | Autogenic Training |
| ID | Term |
|---|---|
| D006990 | Hypnosis |
| D026441 | Mind-Body Therapies |
| D000529 | Complementary Therapies |
| D013812 | Therapeutics |
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| Progressive Muscle Relaxation | Behavioral | Eight 15-minute sessions of progressive muscle relaxation (PMR). |
|
Measure anxious symptom severity
| change from baseline at one-week post treatment and 3-months post-treatment |
| Interpretations Questionnaire-modified (IQ-modified; Buhlmann et al., 2002) | Measure of strength of evaluation related threat interpretation bias | change from baseline at one-week post treatment and 3-months post-treatment |
| D011613 |
| Psychotherapy |
| D004191 | Behavioral Disciplines and Activities |