Document Detail


Phase relations between a circadian rhythm and its zeitgeber within the range of entrainment.
MedLine Citation:
PMID:  345129     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The regular day-night changes in tissues, physiologic functions, and behavior of organisms are based on endogenous rhythmic processes which under constant conditions continue with periods slightly deviating from 24 h. These 'circadian' rhythms have properties of self-sustained oscillators. Under natural conditions, circadian rhythms are synchronized (entrained) to 24 h by periodic factors in the environment, the so-called 'zeitgebers'. In the laboratory, circadian rhythms can also be entrained to periods other than 24 h within certain limits. Data on the phase relationship between the circadian rhythm and an entraining light-dark cycle for vertebrates, insects, plants, and unicellular organisms are reviewed.
Authors:
J Aschoff; H Pohl
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Publication Detail:
Type:  Comparative Study; Journal Article; Review    
Journal Detail:
Title:  Die Naturwissenschaften     Volume:  65     ISSN:  0028-1042     ISO Abbreviation:  Naturwissenschaften     Publication Date:  1978 Feb 
Date Detail:
Created Date:  1978-05-08     Completed Date:  1978-05-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0400767     Medline TA:  Naturwissenschaften     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  80-4     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Activity Cycles
Animals
Birds
Circadian Rhythm*
Insects
Mammals
Periodicity
Plants
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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