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The British Journal of Psychiatry (1974) 125: 265-267. doi: 10.1192/bjp.125.3.265
© 1974 The Royal College of Psychiatrists
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EEG Evaluation of a Sleep Recorder

J. JOHNSON M.D., F.R.C.P.E., F.R.C.Psych.1 and P. LOCKWOOD 2

1 Consultant Psychiatrist, University Hospital of South Manchester, West Didsbury, Manchester, M20 8LR
2 Chief Technician, Department of Electroencephalography, University Hospital of South Manchester, West Didsbury, Manchester, M20 8LR

The duration of sleep as estimated by a sleep recorder (previously described) is compared. with estimation of sleep made simultaneously in the same subject with EEG monitoring. The recorder underestimated the total duration of sleep by 10 per cent. This was largely due to retained capacity for making responses in Stage 1, early Stage 2 sleep and R.E.M. sleep.

Submitted on November 1, 1973






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Psychiatric Bulletin Advances in Psychiatric Treatment All RCPsych Journals
Copyright © 1974 The Royal College of Psychiatrists.