Document Detail


REM sleep in response to light and dark in congenic albino and pigmented F344 rats.
MedLine Citation:
PMID:  11382888     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Sleep was recorded in congenic F344 albino (c/c) and pigmented (c/+) rats while they were exposed to various light-dark schedules at 10, 50 and 100 lux. In short LD schedules (1:1 and 3:3), both c/c and c/+ rats had similar patterns of NREM and waking in the light and dark. NREM was higher in the light and there was more wakefulness in the dark. These differences were accentuated with increased light intensity. In contrast, substantial effects on REM sleep were seen only in the c/c rats and increased light levels also enhanced these effects. REM sleep in pigmented c/+ rats was virtually unaffected by lighting changes. These results indicate that different systems are involved in regulating sleep-waking and REM sleep responses to light and further that these systems are differentially affected by alleles at (or near) the c locus and/or albinism.
Authors:
W H Obermeyer; R M Benca
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Sleep research online : SRO     Volume:  2     ISSN:  1096-214X     ISO Abbreviation:  Sleep Res Online     Publication Date:  1999  
Date Detail:
Created Date:  2001-05-30     Completed Date:  2001-10-25     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  100901064     Medline TA:  Sleep Res Online     Country:  United States    
Other Details:
Languages:  eng     Pagination:  83-8     Citation Subset:  IM    
Affiliation:
Department of Psychiatry, University of Wisconsin-Madison, Wisconsin Psychiatric Institute and Clinics, Madison, Wisconsin 53719, USA. wobermey@facstaff.wisc.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Animals, Congenic
Darkness
Electroencephalography
Electromyography
Female
Genotype
Light
Male
Photoperiod*
Rats
Rats, Inbred F344
Sleep, REM / genetics,  physiology*,  radiation effects
Wakefulness / genetics,  physiology,  radiation effects
Grant Support
ID/Acronym/Agency:
MH01224/MH/NIMH NIH HHS; MH52226/MH/NIMH NIH HHS

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


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