A STUDY OF LONG AND SHORT SLEEPERS

Adult males who always sleep less than six hours or more than nine hours per day were studied. Over 400 were screened; smaller numbers had various psychological tests and psychiatric interviews, and finally 29, free of overt medical or psychiatric pathology, were studied in the laboratory for 8 nigh...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Hartmann, Ernest L, Zwilling, George R
Format: Report
Sprache:eng
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