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Panic attacks and interoceptive acuity for cardiac sensations

G J Asmundson1, L S Sandler, K G Wilson

  • 1Department of Psychology, University of Manitoba, Canada.

Behaviour Research and Therapy
|February 1, 1993
PubMed
Summary
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People with panic attacks do not have better awareness of their heartbeats. This study found no link between panic disorder and enhanced interoceptive acuity for cardiac sensations.

Area of Science:

  • Psychology
  • Psychiatry
  • Cardiology

Background:

  • Cognitive models suggest visceral perception influences panic attacks.
  • The link between panic disorder and heightened awareness of internal bodily sensations (interoception) requires empirical investigation.

Purpose of the Study:

  • To investigate the relationship between panic attacks and the ability to perceive cardiac sensations accurately.
  • To determine if individuals with panic disorder exhibit enhanced interoceptive acuity for heartbeats.

Main Methods:

  • Employed the Whitehead heartbeat discrimination procedure with 20 individuals with panic disorder and 20 healthy controls.
  • Participants completed 60 trials, divided equally between rest and post-hyperventilation conditions.

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Main Results:

  • No significant difference in heartbeat discrimination accuracy was found between individuals with panic disorder and controls.
  • Panic attacks were not associated with enhanced interoceptive acuity for cardiac sensations under either resting or hyperventilation conditions.

Conclusions:

  • The findings do not support the hypothesis that panic disorder is characterized by superior interoceptive accuracy for cardiac sensations.
  • Results challenge certain cognitive models of panic that posit heightened visceral perception as a key factor in panic attack precipitation.