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Eeg Spectral Analysis in Schizophrenia

Published online by Cambridge University Press:  29 January 2018

G. W. Fenton ,
P. B. C. Fenwick ,
J. Dollimore ,
T. L. Dunn  and
S. R. Hirsch
G. W. Fenton
Affiliation:
The Queen's University of Belfast, Whitla Medical Building, 97 Lisburn Road, Belfast, BT9 7BL
P. B. C. Fenwick
Affiliation:
Institute of Psychiatry, University of London
J. Dollimore
Affiliation:
Department of Computer Science and Statistics, Queen Mary College, University of London
T. L. Dunn
Affiliation:
Walsgrave Hospital, Coventry and Central Hospital, Warwick
S. R. Hirsch
Affiliation:
Charing Cross Medical School, University of London
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Summary

Four channels of EEG (T4-T6, P4-02, T3-T5, P3-01) were recorded from several groups of control subjects and schizophrenia patients on analogue tape. They were later digitized and analysed by computer; power spectra were computed for 30 second epochs of EEG per channel; eyes closed, eyes open. No difference between normal controls and neurotic in-patients was apparent. An acute schizophrenic group had less alpha power, this change being confined largely to the temporal areas. A chronic outpatient sample showed less alpha and beta power, while chronic long-stay schizophrenic patients had an excess of delta power. The changes in both chronic patient groups were diffuse rather than local.

Type
Research Article
Information
The British Journal of Psychiatry , Volume 136 , Issue 5 , May 1980 , pp. 445 - 455
Copyright
Copyright © The Royal College of Psychiatrists 

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