The impact of the circadian phase of chronic insomniacs and controls upon their sleep characteristics
نویسندگان
چکیده
Introduction It has been shown that chronic insomniacs, selected on the basis of the type of their sleep complaint (i.e. delayed sleep-onset vs early morning awakening) differ with respect to the phase of their circadian body temperature rhythm (Lack &Wright,1993; Morris et al., 1990). If these results reflect a causal relationship, it should be possible to predict the nature of the sleep complaint of chronic insomniacs from the assessment of their circadian phase. The present study investigated this relationship by measuring the circadian phase of insomniacs and controls and relate this to their sleep characteristics.
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