Abstract
Depletion of brain acetylcholine (ACh) stores by central infusions of hemicholinium-3 (HC-3) did not prevent the circadian phase-shifting effects of subsequent light pulses in rats. Animals treated with atropine likewise had normal responses to light pulses. Neither delay nor advance shifts were prevented. These data do not support the view that ACh is the primary mediator of photoentrainment in the rat. The previously reported effects of carbachol injections may be non-specific.
Original language | English |
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Pages (from-to) | 163-167 |
Number of pages | 5 |
Journal | Brain Research |
Volume | 348 |
Issue number | 1 |
DOIs | |
State | Published - Nov 25 1985 |
Bibliographical note
Funding Information:Supported by NSF PCM8402368. We thank Dr. Elliot Stein and Mr. Edward LeMahieu for technical assistance.
Funding
Supported by NSF PCM8402368. We thank Dr. Elliot Stein and Mr. Edward LeMahieu for technical assistance.
Funders | Funder number |
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National Science Foundation Arctic Social Science Program | PCM8402368 |
National Science Foundation Arctic Social Science Program |
Keywords
- acetylcholine
- circadian rhythm
- phase shift
- suprachiasmatic nucleus
ASJC Scopus subject areas
- General Neuroscience
- Molecular Biology
- Clinical Neurology
- Developmental Biology