ERIC Number: EJ874480
Record Type: Journal
Publication Date: 2010-Jan
Abstractor: As Provided
Reference Count: 0
Deficits in Sensory-Specific Devaluation Task Performance Following Genetic Deletions of Cannabinoid (CB1) Receptor
Crombag, Hans S.; Johnson, Alexander W.; Zimmer, Anne M.; Zimmer, Andreas; Holland, Peter C.
Learning & Memory, v17 n1 p18-22 Jan 2010
Cannabinoid CB1 receptor is abundantly expressed throughout the CNS and is implicated in numerous physiological and behavioral functions, including appetite and feeding. In the present study, wild-type and CB1 heterozygous and homozygous knockout mice were tested on an instrumental outcome-selective devaluation task to assess changes in acquired instrumental response levels for a distinct food reward following selective satiation. Deletion of CB1 receptor, as well as reduction in CB1 expression (HET), produced deficits in outcome-selective instrumental devaluation. These results identify a critical role for CB1 receptor in the ability of animals to represent, update, and/or use sensory-specific outcome representations to alter appetitive behaviors.
Descriptors: Animal Behavior, Animals, Brain, Evaluation Methods, Food, Classical Conditioning, Experiential Learning
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A