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Changes in post-event processing during cognitive behavioural therapy for social anxiety disorder: A longitudinal
Danielle E Katz1, Stephanie Cassin2, Rashmi Weerasinghe1
1Frederick W. Thompson Anxiety Disorders Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
This study shows that reducing post-event processing (PEP) during therapy for social anxiety disorder leads to better treatment outcomes. Both general and momentary PEP decreased, predicting lower symptom severity.
Area of Science:
- Psychology
- Clinical Psychology
- Psychotherapy Research
Background:
- Post-event processing (PEP) is a key factor in maintaining social anxiety disorder (SAD) symptoms.
- Previous research indicates general PEP tendencies respond to treatment.
- The change in momentary PEP during SAD treatment is not well understood.
Purpose of the Study:
- To investigate changes in both general and momentary post-event processing over the course of SAD treatment.
- To determine if these changes predict treatment outcomes for social anxiety.
Main Methods:
- Sixty participants with SAD underwent group cognitive behavioral therapy.
- Measures of PEP and social anxiety symptom severity were collected at five time points.
- A subset of 33 participants provided repeated experience sampling of PEP after social interactions.
Main Results:
- Both general and momentary PEP significantly decreased throughout the treatment period.
- Reductions in both types of PEP were associated with lower social anxiety symptom severity post-treatment.
Conclusions:
- Momentary post-event processing is amenable to therapeutic intervention in SAD.
- Changes in momentary PEP influence treatment outcomes, offering clinical and theoretical insights.
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