Facial electromyography in anxious and nonanxious depression: Relation to auditory perceptual asymmetry and measures of experienced emotion.
Item
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Title
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Facial electromyography in anxious and nonanxious depression: Relation to auditory perceptual asymmetry and measures of experienced emotion.
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Identifier
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AAI9207133
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identifier
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9207133
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Creator
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Voglmaier, Martina Maria.
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Contributor
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Adviser: Gad Hakerem
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Date
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1991
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Language
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English
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Publisher
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City University of New York.
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Subject
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Psychology, Clinical | Psychology, Physiological
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Abstract
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Facial electromyography (EMG) in response to pictures of facial affect and dichotic listening measures of perceptual asymmetry were assessed in anxious- and nonanxious-depressed patients and normal controls. All subjects were female and most patients met criteria for an "atypical" depression. Anxious-depressed patients also met criteria for an anxiety disorder, primarily panic disorder. Anxious-depressed patients showed a striking lack of facial muscle reactivity to happy faces, a lack of normal right ear advantage (REA) on a verbal dichotic listening task, and a lack of normal association between facial muscle activity and self-reported happiness in response to happy faces. In contrast, nonanxious-depressed patients showed more distinct corrugator muscle activity in response to sad faces, a slightly larger REA on a verbal dichotic task, and an abnormally strong association between corrugator activity and self-reported sadness in response to sad faces. All depressed patients showed a lack of normal left ear advantage (LEA) on a nonverbal dichotic task. Facial muscle activity was found to correspond to self-reported experience of emotion, but expression-experience associations varied according to the affective quality of the facial stimuli, and differed for the depressive subtypes. Successful antidepressant treatment was found to reduce facial muscle activity levels in the nonanxious depressed group, but did not change patterns of facial muscle activity in response to pictures of affective faces. There was some preliminary evidence that differential patterns of corrugator muscle activity may characterize treatment responders and nonresponders. The results suggest that anxious atypical depression may be characterized by more left hemisphere involvement than nonanxious atypical depression, and support valence-lateralized hypotheses of emotion. It is suggested that abnormal facial muscle activity patterns in these depressive subtypes may be state-independent characteristics, and that abnormal expression-experience associations may be related to social deficits in depression.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
