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ERIC Number: EJ1082529
Record Type: Journal
Publication Date: 2015-Dec
Pages: 5
Abstractor: As Provided
ISSN: ISSN-1072-0502
The Cannabinoid System in the Retrosplenial Cortex Modulates Fear Memory Consolidation, Reconsolidation, and Extinction
Sachser, Ricardo Marcelo; Crestani, Ana Paula; Quillfeldt, Jorge Alberto; e Souza, Tadeu Mello; de Oliveira Alvares, Lucas
Learning & Memory, v22 n12 p584-588 Dec 2015
Despite the fact that the cannabinoid receptor type 1 (CB1R) plays a pivotal role in emotional memory processing in different regions of the brain, its function in the retrosplenial cortex (RSC) remains unknown. Here, using contextual fear conditioning in rats, we showed that a post-training intra-RSC infusion of the CB1R antagonist AM251 impaired, and the agonist CP55940 improved, long-term memory consolidation. Additionally, a post-reactivation infusion of AM251 enhanced memory reconsolidation, while CP55940 had the opposite effect. Finally, AM251 blocked extinction, whereas CP55940 facilitated it and maintained memory extinguished over time. Altogether, our data strongly suggest that the cannabinoid system of the RSC modulates emotional memory.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A