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Responses of the hypothalamic paraventricular neurons to light stimulation with different wavelengths in the rat

Authors
 Bae Hwan Lee  ;  Se Jung Jung  ;  Un Jeng Kim  ;  Jin-Hun Sohn  ;  Shigeki Watanuki  ;  Akira Yasukouchi  ;  Takeshi Morita 
Citation
 BIOLOGICAL RHYTHM RESEARCH, Vol.39(5) : 389-395, 2008 
Journal Title
BIOLOGICAL RHYTHM RESEARCH
ISSN
 0929-1016 
Issue Date
2008
Keywords
light ; non-visual system ; suprachiasmatic nucleus ; paraventricular nucleus ; electrophysiology
Abstract
During exposure to light with different spectral compositions, the non-visual neural system in the brain gives rise to altered various physiological aspects that are not caused by the well-known primary visual pathway. This study has been designed to investigate non-visual information processing that affects the biological rhythms in humans by studying the properties of paraventricular neurons in Sprague-Dawley rats under urethane anesthesia. The responses of paraventricular nucleus neurons by stimulation with different wavelengths of light were recorded. It turned out that neural responses were most sensitive to 550 nm wavelength light. This result suggests that a non-visual system in the hypothalamus including the paraventricular nucleus responds to light stimuli to control biological rhythms or autonomic functions.
Full Text
http://www.tandfonline.com/doi/abs/10.1080/09291010701536342
DOI
10.1080/09291010701536342
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Physiology (생리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Un Jeng(김은정) ORCID logo https://orcid.org/0000-0003-0968-0252
Lee, Bae Hwan(이배환) ORCID logo https://orcid.org/0000-0003-4719-9021
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/107163
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