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Related Experiment Videos

Explicit and implicit memory bias in panic disorder with agoraphobia

L G Lundh1, S Czyzykow, L G Ost

  • 1Department of Psychology, Stockholm University, Sweden.

Behaviour Research and Therapy
|February 12, 1998
PubMed
Summary

Patients with panic disorder exhibit explicit memory biases for physical threats, not implicit ones. This explicit bias links to anxiety sensitivity and agoraphobia, suggesting a role in panic disorder.

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Area of Science:

  • Cognitive Psychology
  • Clinical Psychology
  • Neuroscience

Background:

  • Panic disorder with agoraphobia is associated with heightened threat perception.
  • Memory biases, both explicit and implicit, may contribute to the maintenance of anxiety disorders.

Purpose of the Study:

  • To investigate explicit and implicit memory biases for threat-related information in panic disorder with agoraphobia.
  • To explore the relationship between memory biases and clinical anxiety measures.

Main Methods:

  • Comparison of explicit memory (cued recall) and implicit memory (word stem completion) in panic disorder patients and healthy controls.
  • Utilized positive, neutral, social threat, and physical threat words.
  • Correlated memory bias indices with anxiety sensitivity and agoraphobic fear/avoidance.

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Main Results:

  • Panic disorder patients demonstrated an explicit memory bias for physical threat words, but not an implicit bias.
  • Explicit memory bias for physical threat words correlated with anxiety sensitivity and agoraphobic severity.
  • Implicit memory bias for threat words correlated with trait anxiety.

Conclusions:

  • Explicit memory bias for physical threat may play a functional role in panic disorder.
  • Implicit memory processes might differ in their contribution to anxiety disorders.
  • Explicit and implicit memory biases for emotional information could represent distinct vulnerability factors for emotional disorders.