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dc.contributor.authorMcEvoy, Peter
dc.contributor.authorMoulds, M.
dc.contributor.authorGrisham, J.
dc.contributor.authorHolmes, E.
dc.contributor.authorMoscovitch, D.
dc.contributor.authorHendrie, D.
dc.contributor.authorSaulsman, L.
dc.contributor.authorLipp, Ottmar
dc.contributor.authorKane, Robert
dc.contributor.authorRapee, R.
dc.contributor.authorHyett, M.
dc.contributor.authorErceg-Hurn, D.
dc.identifier.citationMcEvoy, P. and Moulds, M. and Grisham, J. and Holmes, E. and Moscovitch, D. and Hendrie, D. and Saulsman, L. et al. 2017. Assessing the efficacy of imagery-enhanced cognitive behavioral group therapy for social anxiety disorder: Study protocol for a randomized controlled trial. Contemporary Clinical Trials. 60: pp. 34-41.

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.

dc.titleAssessing the efficacy of imagery-enhanced cognitive behavioral group therapy for social anxiety disorder: Study protocol for a randomized controlled trial
dc.typeJournal Article
dcterms.source.titleContemporary Clinical Trials
curtin.departmentSchool of Psychology and Speech Pathology
curtin.accessStatusFulltext not available

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