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

TitleThe interaction of electrodermal activity and expressed emotion in predicting symptoms in recent-onset schizophrenia.
Publication TypeJournal Article
Year of Publication2012
AuthorsSubotnik, KL, Schell AM, Chilingar MS, Dawson ME, Ventura J, Kelly KA, Hellemann GS, Nuechterlein KH
JournalPsychophysiology
Volume49
Issue8
Pagination1035-8
Date Published2012 Aug
ISSN1540-5958
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.

DOI10.1111/j.1469-8986.2012.01383.x
Alternate JournalPsychophysiology