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Mechanisms underlying interoceptive exposure: belief disconfirmation or extinction? A preliminary study
Rivkah Ginat-Frolich1, Anna Kara-Ivanov1, Asher Y Strauss1
1Department of Psychology, The Hebrew University of Jerusalem, Jerusalem, Israel.
Cognitive Behaviour Therapy
|October 11, 2022
Summary
Cognitive interventions effectively reduced anxiety sensitivity and catastrophic thoughts, but not distress, in individuals with high anxiety sensitivity. These symptom improvements were not sustained at one-month follow-up.
Area of Science:
- Psychology
- Clinical Psychology
- Cognitive Behavioral Therapy
Background:
- Interoceptive exposure is a key component of cognitive behavioral therapies for anxiety disorders.
- Anxiety sensitivity (AS) involves fear of physical sensations, often linked to anxiety disorders.
- Understanding the mechanisms of interoceptive exposure is crucial for optimizing anxiety treatments.
Purpose of the Study:
- To investigate the cognitive-behavioral mechanisms of interoceptive exposure in individuals with high AS.
- To compare a cognitive-behavioral intervention (CbI) with a purely behavioral intervention (BI) and a control group.
- To examine the effects on AS, catastrophizing, and distress (SUDS).
Main Methods:
- A laboratory-based analog study with 59 participants high in AS.
- Randomization into three groups: CbI (belief disconfirmation), BI (exposure), and control.
- Assessment of AS, catastrophizing, and SUDS before, during, after intervention, and at one-month follow-up.
Main Results:
- The CbI group showed significant reductions in AS and catastrophizing interpretations.
- Only the CbI group demonstrated a decrease in SUDS ratings; the BI group showed an increase.
- Observed effects were not maintained at the one-month follow-up assessment.
Conclusions:
- Cognitive interventions, like CbI, may reduce anxiety symptoms and misinterpretations without requiring repeated behavioral exposure.
- Purely behavioral exposure (BI) did not yield the same reductions and even increased distress in this study.
- The findings question the necessity of pure behavioral mechanisms in exposure therapy for anxiety sensitivity and highlight the role of cognitive restructuring.
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