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Abstract
To determine whether subgroups of depressed patients could be differentiated on the
basis of electrodermal activity (EDA), the skin conductance of 36 depressed patients
was recorded for two experimental conditions. In the first condition, subjects heard
10 85-dB tones after receiving instructions that were intended to relax the patients.
In the second experimental condition, subjects heard 12 105-dB tones, one-half of
which were signal tones containing a brief gap in the middle. The subjects were required
to respond to the tones containing the gap by pressing a foot pedal. No differences
in tonic or phasic EDA were detected on the basis of unipolar or bipolar subtype,
response to the dexamethasone suppression test, severity of depression, medication
status, or sex. However, patients who exhibited features of psychomotor retardation
had significantly lower levels of tonic EDA than did their nonretarded counterparts.
The EDA of the depressed patients as a group was uniformly low. These results are
consistent with other reports indicating that, with the exception of the retarded/nonretarded
distinction, there are no differences in EDA among the various subtypes of depression.
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References
- A specific laboratory test for the diagnosis of melancholia: Standardization, validation, and clinical utility.Arch Gen Psychiatry. 1981; 38: 15-22
- Autonomic correlates of depression and clinical improvement following electroconvulsive shock therapy.Psychophysiology. 1977; 14: 569-578
- The unipolar-bipolar distinction in the depressive disorders.Psychol Bull. 1978; 85: 1001-1029
- The orienting response: Importance of instructions.Schizophr Bull. 1979; 5: 11-14
- Electrodermal activity in euthymic unipolar and bipolar affective disorders: A possible marker for depression.Arch Gen Psychiatry. 1983; 40: 557-565
- Electrodermal activity in euthymic patients with affective disorders: One-year retest stability and the effects of stimulus intensity and significance.J Abnorm Psychol. 1984; 93: 304-311
- Physiological measures in agitated and retarded depressed patients.J Psychiatr Res. 1969; 7: 89-100
- Agitated and retarded depression: A clinical psychophysiological evaluation.Neuropsychobiology. 1980; 6: 217-223
- The symptomatic correlates of the skin conductance changes in depression.J Psychiatr Res. 1971; 9: 61-69
- Research Diagnostic Criteria (RDC) for a Selected Group of Functional Disorders.3rd ed. State Psychiatric Institute, Biometrics Research, New York1977
- Electrodermal activity in the affective disorders and schizophrenia.Psycholog Med. 1981; 11: 497-508
- Skin conductance: A potentially sensitive test for depression.Psychiatr Res. 1983; 10: 295-302
Article info
Publication history
Received:
July 23,
1984
Footnotes
☆Supported by the Medical Research Council of Canada.
Identification
Copyright
© 1985 Published by Elsevier Inc.