The effect of multiple pulses of light on the circadian phase response of the rat

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/210555

Title: The effect of multiple pulses of light on the circadian phase response of the rat
Author(s): Stokes, Mark A.; Kent, Stephen; Armstrong, Stuart Maxwell
Abstract: Multiple pulses of light administered to humans have been reported to result in type 0 phase responses. These results suggest the underlying pacemaker to be nonsimple. At present, results with this type of protocol have only been reported for humans. Therefore, multiple pulses of light were administered to rats. Rats were exposed to one, two, three, or four pulses of light for 5 h (1000 lux) at successive 24-h intervals. Results did not suggest a type 0 phase response. Nonetheless, results with a second, third, or fourth light exposure were not fully predictable from a phase response curve derived from a single light pulse.
Publication type: Journal article
Research centre: Swinburne University of Technology. Brain Sciences Institute
Source: Journal of Biological Rhythms, Vol. 14, no. 3 (Jun 1999), pp. 172-184
Publication year: 1999
FOR Code(s): 0606 Physiology; 1109 Neurosciences; 1116 Medical Physiology
Keyword(s): Circadian; Light response; Multiple pulses; Pacemaker; Period; Phase response
Publisher: Sage
ISSN: 0748-7304
Publisher URL: http://dx.doi.org/10.1177/074873099129000579
Peer reviewed