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ERIC Number: EJ1027271
Record Type: Journal
Publication Date: 2014-Apr
Pages: 5
Abstractor: As Provided
Reference Count: N/A
ISSN: ISSN-1072-0502
The Orexin Component of Fasting Triggers Memory Processes Underlying Conditioned Food Selection in the Rat
Ferry, Barbara; Duchamp-Viret, Patricia
Learning & Memory, v21 n4 p185-189 Apr 2014
To test the selectivity of the orexin A (OXA) system in olfactory sensitivity, the present study compared the effects of fasting and of central infusion of OXA on the memory processes underlying odor-malaise association during the conditioned odor aversion (COA) paradigm. Animals implanted with a cannula in the left ventricle received ICV infusion of OXA or artificial cerebrospinal fluid (ACSF) 1 h before COA acquisition. An additional group of intact rats were food-deprived for 24 h before acquisition. Results showed that the increased olfactory sensitivity induced by fasting and by OXA infusion was accompanied by enhanced COA performance. The present results suggest that fasting-induced central OXA release influenced COA learning by increasing not only olfactory sensitivity, but also the memory processes underlying the odor-malaise association.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A