Dyspneic-fear and catastrophic cognitions in hyperventilatory panic attacks

Area of Science:

• Psychology
• Psychiatry
• Neuroscience

Background:

• Cognitive models, including Ley's misattribution-of-symptoms and Beck/Clark's catastrophic misinterpretation hypotheses, have explained fear during panic attacks.
• These cognitive explanations face challenges from recent research findings.

Purpose of the Study:

• To evaluate the tenability of cognitive explanations for fear experienced during panic attacks.
• To present an alternative explanation based on respiratory and physiological factors.

Main Methods:

• Review of three independent research findings: catastrophic cognitions following fear, panic attacks without fearful cognitions, and sleep-related panic attacks during non-dreaming stages.
• Analysis of Ley's revised hyperventilation theory.

Main Results:

• Evidence suggests catastrophic cognitions may follow, rather than precede, fear during panic attacks.
• Panic attacks can occur without accompanying fearful cognitions.
• Sleep-related panic attacks predominantly occur during non-dreaming sleep stages, challenging cognitive interpretations.

Conclusions:

• Ley's misattribution-of-symptoms hypothesis was rejected in favor of an innate emotional-respiratory-response explanation.
• The revised hyperventilation theory posits that fear in hyperventilatory panic attacks results from severe dyspnea (shortness of breath) with a lack of perceived control.
• Cognitive deficits during panic attacks may be linked to cerebral hypoxia caused by hyperventilation.