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Motor activity and tonic heart rate were monitored in 62 drug-free panic disorder patients and 40 normal control subjects. Mean daily activity, mean waking heart rate controlled for activity, and mean sleeping heart rate were determined. Panic disorder patients without phobic avoidance showed higher activity than control subjects or patients with limited or extensive avoidance. Similarly, an "inverted U", relationship between trait anxiety and activity was observed. On the other hand, neither mean waking nor sleeping heart rate showed significant differences between patients and controls, suggesting that the differences previously reported in laboratory studies result from anticipatory anxiety.

Type

Journal article

Journal

Psychiatry Res

Publication Date

04/1990

Volume

32

Pages

45 - 53

Keywords

Adult, Anxiety Disorders, Arousal, Electrocardiography, Ambulatory, Fear, Female, Heart Rate, Humans, Male, Motor Activity, Panic, Phobic Disorders