ISSN:
1420-9071
Keywords:
Human circadian rhythm
;
bright light pulse
;
phase-shift
;
temporal isolation
;
phase response curve
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary Responsiveness of free-running human circadian rhythms to a single pulse of bright light was examined in a temporal isolation unit. Bright light (5000 lx) of either 3 or 6 h duration, applied during the early subjective day, produced phase-advance shifts in both the sleep-wake cycle and the rhythm of rectal temperature; the light pulse had essentially no effect on the phase of the circadian rhythms, when it was introduced during the late subjective day or the early subjective night. The results indicate that bright light can reset the human circadian pacemaker.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01945525
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