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Psychophysiology. 2012 Aug;49(8):1035-8. doi: 10.1111/j.1469-8986.2012.01383.x. Epub 2012 Jun 8.

The interaction of electrodermal activity and expressed emotion in predicting symptoms in recent-onset schizophrenia.

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  • 1Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles 90095-8346, USA. KSubotnik@mednet.ucla.edu

Abstract

In the present study, expressed emotion (EE) was assessed among immediate family members of 94 recent-onset schizophrenia patients at initial study entry point, and patients' electrodermal activity (EDA) was measured without the presence of family members at a baseline outpatient stabilization assessment. Psychiatric symptoms were also rated, both at the baseline outpatient test and at 1-year follow-up. Electrodermal activity × expressed emotion interactions were observed at both test points. In each case, the highest levels of negative symptoms were observed among those who exhibited greater EDA and lived in a high-EE environment. These results support the view that the combination of high family EE and sympathetic nervous system arousal confer especially high risk for poor negative symptom outcomes.

Copyright © 2012 Society for Psychophysiological Research.

PMID:
22680838
[PubMed - indexed for MEDLINE]
PMCID:
PMC3399973
Free PMC Article
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