Sleep pp 469-470 | Cite as

Circadian rhythm sleep disorders

Introduction
  • M. Billiard

Abstract

The grouping of circadian rhythm sleep disorders dates back to the Diagnostic Classification of Sleep Disorders in 1979 [4], based on a shared cardinal feature: all these disorders represent one form or another of initial misalignment between the patient’s sleep and wake behaviours and that which is desired or regarded as the societal norm. In this Classification the circadian rhythm sleep disorders were divided into two groups, transient and persistent disorders. Nowadays, in the International Classification of Sleep Disorders [3], this subdivision has not been retained. However some of these disorders are only of an extrinsic type whereas the others depend on intrinsic and extrinsic factors (table 36.1).

Keywords

Transportation Cortisol Melatonin Blindness 

References

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    AMERICAN SLEEP DISORDERS ASSOCIATION. ICSD - International classification of sleep disorders, revised: Diagnostic and coding manual. American Sleep Disorders Association, 1977Google Scholar
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    ASSOCIATION OF SLEEP DISORDERS CENTERS - Diagnostic Classification of Sleep and Arousal Disorders, First Edition, prepared by the Sleep Disorders Classification Committee, H.P. Roffwarg, Chairman, Sleep 2, 1–137, 1979Google Scholar

Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • M. Billiard
    • 1
  1. 1.Service de Neurologie BHôpital Gui de ChauliacMontpellierFrance

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