Document Detail

The effect of color temperature of lighting sources on the autonomic nervous functions.
MedLine Citation:
PMID:  1418171     Owner:  NLM     Status:  MEDLINE    
The present study was designed to investigate the effects of color temperature of lighting sources on the heart rate variability. Eight male students volunteered as subjects. The heart rate variability during task and rest sessions were estimated under nine different lighting environments consisting of three levels of color temperature (3000 degrees K, 5000 degrees K and 6700 degrees K) and three levels of illuminance (1001x, 3001x and 9001x). The lighting condition caused no effect on the mean heart rate. On the other hand, the power spectrum of heart rate was significantly influenced by the lighting conditions. The respiratory sinus arrhythmia component and Mayer wave related sinus arrhythmia component of the power spectrum increased under higher color temperature conditions. Judging from the consistency of heart rate level, the balance between the effects of parasympathetic and sympathetic nervous systems remained at a constant level irrespective of lighting quality and intensity. Therefore, both parasympathetic and sympathetic nervous functions were concluded to be enhanced under higher color temperature conditions. The light with higher color temperature was considered to activate the autonomic nervous function more than the light of lower color temperature. The effect of color temperature was much remarkable in the rest session comparing with the task session. This fact was discussed from the viewpoint of color temperature effect in environmental lighting.
H Mukae; M Sato
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of physiological anthropology = Seiri Jinruigaku Kenkyūkai kaishi     Volume:  11     ISSN:  0287-8429     ISO Abbreviation:  Ann Physiol Anthropol     Publication Date:  1992 Sep 
Date Detail:
Created Date:  1992-12-08     Completed Date:  1992-12-08     Revised Date:  2006-02-27    
Medline Journal Info:
Nlm Unique ID:  8506625     Medline TA:  Ann Physiol Anthropol     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  533-8     Citation Subset:  IM    
Department of Physiological Anthropology, Kyushu University of Design Sciences.
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MeSH Terms
Analysis of Variance
Autonomic Nervous System / physiology*
Heart Rate

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