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Panic patients in the non-panic state: physiological and cognitive dysfunction.

L Dratcu¹, A Bond

¹Guy's Hospital, United Medical and Dental Schools, York Clinic, 47 Weston Street, London SEI 3RR, United Kingdom.

European Psychiatry : the Journal of the Association of European Psychiatrists

|August 25, 2009

Summary

This summary is machine-generated.

People with panic disorder (PD) show heightened anxiety symptoms and distorted perceptions, even when not experiencing panic attacks. Hyperventilation and cognitive issues in their non-panic state may contribute to PD pathophysiology.

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Area of Science:

Neuroscience
Psychiatry
Clinical Psychology

Background:

Panic disorder (PD) is often differentiated from generalized anxiety disorder (GAD) by panic attacks and antidepressant response.
Previous research has focused on neurochemical disturbances during panic, neglecting the non-panic state in PD.

Purpose of the Study:

To investigate biochemical, psychological, and physiological differences in panic disorder patients during a non-panic state compared to controls.
To explore the role of the non-panic state in the pathophysiology of panic disorder.

Main Methods:

Comparison of panic disorder patients (non-panic state) and healthy controls on neuroendocrine, psychological (self-ratings, cognitive tests), and physiological measures (skin conductance, EEG).
Objective assessments included pulse rate and psychomotor performance.

Main Results:

No significant differences were found in neuroendocrine tests between groups.
Panic disorder patients reported higher anxiety symptoms and performed worse on word recall.
Patients exhibited increased skin conductance fluctuations and EEG slow wave activity, indicative of hyperventilation.
Discrepancies between self-reported and objective measures revealed distorted perceptions of physical and mental functioning in PD patients.

Conclusions:

Hyperventilation and cognitive distortions in the non-panic state are identified as potential contributors to panic attack facilitation and the overall pathophysiology of panic disorder.
Findings suggest that the non-panic state holds significant implications for understanding and potentially treating panic disorder.