Skin conductance responsivity during acute episodes of schizophrenia as a predictor of symptomatic improvement

Frith, C. D.; Stevens, Marilyn; Johnstone, Eve C.; Crow, Timothy J.

doi:10.1017/s0033291700021607

Cited by 96 publications

(63 citation statements)

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“…Tarrier and Barrowclough [1987] in a longi tudinal study of a single case found that although electrodermal activity was reactive to environmental factors such as the rela tives' EE status, there was also a suggestion that stable elevated levels of arousal (a mean of 6 non-specific skin conductance re sponses, NS-SCRs/min or above) would pre dict relapse over a 2-year period and possi bly represented a biological vulnerability to repeated episodes. This finding would agree with the results of other studies which have demonstrated, using classical laboratory pa radigms, that electrodcrmal measures such as: slow habituation, high frequencies of NSSCRs and high tonic levels of skin conduc tance (SCL), are associated with poor prog nosis and poor response to treatment [Frith et al, 1979;Zahn et ah, 1981].…”

Section: Introductionsupporting

confidence: 92%

Electrodermal Activity as a Predictor of Schizophrenic Relapse

Tarrier

Barrowclough

1989

Psychopathology

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Electrodermal activity and self-report of affect were recorded from schizophrenic patients with their relative absent and present, at index admission and on two subsequent occasions after discharge. It was hypothesised that it would be possible to discriminate at index admission patients who relapsed in the subsequent 2-year period from those who remained well, and that these differences would be stable over time and independent of illness episode. The former hypothesis was supported in part, but not the second. The results did not support electrodermal hyperactivity as a stable, enduring vulnerability marker.

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Section: Introductionsupporting

confidence: 92%

Electrodermal Activity as a Predictor of Schizophrenic Relapse

Tarrier

Barrowclough

1989

Psychopathology

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“…242 Electrodermal habituation speed has also been demonstrated yielding some predictive value for short-term therapeutic outcome in schizophrenics. Frith, Stevens, Johnstone, and Crow (1979) found that habituation of SCRs to a series of 14 tones (1 kHz, 85 dB), as measured with standard methodology using K-Y gel, was a better predictor for improvement than treatment with neuroleptics. These results are consistent with the findings of Zahn, Carpenter, and McGlashan (1981b) that only schizophrenic patients who revealed EDRs to an RT task similar to those of normal, showed a marked decrease in their symptomatology.…”

Section: Electrodermal Nonresponding In Schizophrenicsmentioning

confidence: 96%

Electrodermal Activity

Boucsein

2012

1,575

1,589

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except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights.Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Foreword to the Second EditionAs noted by David Lykken in the foreword to the first edition of this book, electrodermal activity was observed for the first time in Germany. A quartercentury later the scientific study of psychology also originated in Germany. Over time, however, the focus of psychological research, including the then new field of psychophysiology, shifted to the United States and Great Britain. This trend to the dominance of the United States and Great Britain was prolonged by the devastation of World War II and its aftermath in Germany (and elsewhere in continental Europe). Slowly at first and then more rapidly, German psychological science, including psychophysiology, recovered. For several decades German psychophysiologists have been a major force in psychophysiology. With the publication of the first English edition of this book in 1992, it became essential for electrodermal researchers worldwide again to learn from our German colleagues.When I came into psychophysiology in the mid-1960s, electrodermal activity was the most common system studied. Because of its popularity, a large literature had emerged on the physiological mechanisms producing these changes in the electrical properties of the skin and on the best methodology for recording them. Major reviews and/or chapters had been published or soon were to be published by Peter Venables and Irene Martin, Robert Edelberg, and David Lykken. Later reviews and articles were published by Venables and Margaret Christie, and by me. A chapter in 1990 by Michael Dawson, Anne Schell, and Diane Filion was especially noteworthy for its coverage of the psychological applications of electrodermal measures.Note that all these publications were journal articles and chapters and that most of them focused almost entirely on mechanisms and methodology. The publication of this book, first in German and then in English, provided the first book on electrodermal activity, and one that extensively covers psychological applications as well as mechanisms and methodology. Again to quote David Lykken back in 1992, "The return of German scholarship to what I shall loftily call the high table of psychophysiology is exemplified by this fine book, the most comprehensive treatise on the electrodermal system to appear in any language . . ." I completely agree with v that evaluation. Professor Boucsein's outstanding scholarship has produced a book of such breadth of coverage ...

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“…However, other investigators have found that higher levels of electrodermal activity were concurrently associated with higher levels of symptoms or longer hospital stays in schizophrenia (Frith, Stevens, Johnstone, & Crow, 1979; Straube, Wagner, Foerster, & Heiman, 1989; Zahn, Carpenter, & McGlashan, 1981). In more recent studies, Fuentes et al (1993), in addition to finding that negative symptoms were concurrently greater among nonresponders, also found that some positive symptoms were greater among responders.…”

Section: Electrodermal Activity and Symptomatic Outcomementioning

confidence: 98%

Electrodermal predictors of functional outcome and negative symptoms in schizophrenia

et al. 2005

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The ability of electrodermal variables to predict negative symptoms and functional outcome over a 1-year period in schizophrenia was investigated in 78 young, recent-onset outpatients. Patients were stabilized on standardized medication and largely free of psychotic symptoms. Higher levels of both tonic (skin conductance level, nonspecific skin conductance response rate) and phasic (number of skin conductance orienting responses) activity were associated with more negative symptoms and with a combination of poorer social and occupational outcome at 1-year follow-up. This pattern was seen in both male and female patients, and in older and younger patients. Results are interpreted as suggesting that high levels of arousal and overreactivity to the environment may interfere with efficient cognitive processing in schizophrenia, contributing to poor outcome, and that negative symptoms might partially serve as a means of coping with overarousal.

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Skin conductance responsivity during acute episodes of schizophrenia as a predictor of symptomatic improvement

Cited by 96 publications

References 11 publications

Electrodermal Activity as a Predictor of Schizophrenic Relapse

Electrodermal Activity as a Predictor of Schizophrenic Relapse

Electrodermal Activity

Electrodermal predictors of functional outcome and negative symptoms in schizophrenia

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