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Assessing the efficacy of imagery-enhanced cognitive behavioral group therapy for social anxiety disorder: Study protocol for a randomized controlled trial
Curtin Univ, Sch Psychol & Speech Pathol, Kent St, Bentley, WA 6102, Australia;Ctr Clin Intervent, 223 James St, Northbridge, WA 6003, Australia.
Univ New South Wales, Sch Psychol, Sydney, NSW 2052, Australia.ORCID iD: 0000-0001-7064-4248
Univ New South Wales, Sch Psychol, Sydney, NSW 2052, Australia.
Univ Cambridge, MRC, Cognit & Brain Sci Unit, 15 Chaucer Rd, Cambridge CB2 7EF, England. (EMIL)ORCID iD: 0000-0001-7319-3112
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2017 (English)In: Contemporary Clinical Trials, ISSN 1551-7144, E-ISSN 1559-2030, Vol. 60, p. 34-41Article in journal (Refereed) Published
Abstract [en]

Cognitive behavior group therapy (CBGT) is effective for social anxiety disorder (SAD), but a substantial proportion of patients do not typically achieve normative functioning. Cognitive behavioral models of SAD emphasize negative self-imagery as an important maintaining factor, and evidence suggests that imagery is a powerful cognitive mode for facilitating affective change. This study will compare two group CBGT interventions, one that predominantly uses verbally-based strategies (VB-CBGT) and another that predominantly uses imagery-enhanced strategies (IE-CBGT), in terms of (a) efficacy, (b) mechanisms of change, and (c) cost-effectiveness. This study is a parallel groups (two-arm) single-blind randomized controlled trial. A minimum of 96 patients with SAD will be recruited within a public outpatient community mental health clinic in Perth, Australia. The primary outcomes will be self-reported symptom severity, caseness (SAD present: yes/no) based on a structured diagnostic interview, and clinician-rated severity and life impact. Secondary outcomes and mechanism measures include blind observer-rated use of safety behaviors, physiological activity (heart rate variability and skin conductance level) during a standardized speech task, negative self-beliefs, imagery suppression, fear of negative and positive evaluation, repetitive negative thinking, anxiety, depression, self-consciousness, use of safety behaviors, and the EQ-5D-5L and TiC-P for the health economic analysis. Homework completion, group cohesion, and working alliance will also be monitored. The outcomes of this trial will inform clinicians as to whether integrating imagery-based strategies in cognitive behavior therapy for SAD is likely to improve outcomes. Common and distinct mechanisms of change might be identified, along with relative cost-effectiveness of each intervention.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE INC , 2017. Vol. 60, p. 34-41
Keywords [en]
Social anxiety disorder, Cognitive behavior therapy, Imagery, Cognitive therapy, Randomized controlled trial, Mechanisms, Cost-effectiveness
National Category
Applied Psychology
Identifiers
URN: urn:nbn:se:uu:diva-404765DOI: 10.1016/j.cct.2017.06.010ISI: 000407981100004PubMedID: 28642208OAI: oai:DiVA.org:uu-404765DiVA, id: diva2:1396799
Available from: 2020-02-26 Created: 2020-02-26 Last updated: 2020-02-27

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Holmes, Emily A.

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Moulds, Michelle L.Holmes, Emily A.Hendrie, DeliaSaulsman, Lisa M.Lipp, Ottmar V.Rapee, Ronald M.Erceg-Hurn, David M.
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