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Effects of light treatment on circadian rhythmicity in seasonal affective disorder

Published online by Cambridge University Press:  16 April 2020

T Partonen ,
B Appelberg ,
S Kajaste ,
M Partinen ,
M Härmä  and
J Laitinen
T Partonen
Affiliation:
Ullanlinna Ullanlinna Sleep Disorders Clinic and Research Center Tarkk’ampujankatu
B Appelberg
Affiliation:
Ullanlinna Ullanlinna Sleep Disorders Clinic and Research Center Tarkk’ampujankatu Department of Psychiatry, 1E, SF-00130
S Kajaste
Affiliation:
Ullanlinna Ullanlinna Sleep Disorders Clinic and Research Center Tarkk’ampujankatu
M Partinen
Affiliation:
Ullanlinna Ullanlinna Sleep Disorders Clinic and Research Center Tarkk’ampujankatu Department of Neurology, Helsinki University Central Hospital, Helsinki
M Härmä
Affiliation:
Institute of Occupational Health, Vantaa
J Laitinen
Affiliation:
Department of Physiology, University of Kuiopio, Kuiopio, Finland
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Summary

Twelve outpatients with seasonal affective disorder were treated by 1-h morning bright light exposure for 5 days. The light treatment intervention produced a significant phase advance of self-rated sleepiness rhythm, a significant decrease of the mean level of subjective sleepiness, and a significant reduction of depression scores. No significant objective circadian rhythm phase shift nor amplitude changes would account for the antidepressant effect.

Keywords

seasonal affective disorderlight treatmentsleepinesscircadian rhythm
Type
Short communication
Information
European Psychiatry , Volume 7 , Issue 3 , 1992 , pp. 141 - 142
Copyright
Copyright © Elsevier, Paris 1992

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