Involvement of the lateral septal area in the expression of fear conditioning to context | Zendy

Daniel G. Reis | Zendy; América A. Scopinho | Zendy; Francisco Silveira Guimarães | Zendy; Fernando Morgan de Aguiar Corrêa | Zendy; Leonardo B.M. Resstel | Zendy

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Involvement of the lateral septal area in the expression of fear conditioning to context

Author(s) -

Daniel G. Reis,

América A. Scopinho,

Francisco Silveira Guimarães,

Fernando Morgan de Aguiar Corrêa,

Leonardo B.M. Resstel

Publication year - 2010

Publication title -

learning and memory

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.228

H-Index - 136

eISSN - 1549-5485

pISSN - 1072-0502

DOI - 10.1101/lm.1534710

Subject(s) - conditioning , fear conditioning , psychology , microinjections , context (archaeology) , neuroscience , classical conditioning , unconditioned stimulus , developmental psychology , chemistry , central nervous system , amygdala , biology , paleontology , statistics , mathematics

Considering the evidence that the lateral septal area (LSA) modulates defensive responses, the aim of the present study is to verify if this structure is also involved in contextual fear conditioning responses. Neurotransmission in the LSA was reversibly inhibited by bilateral microinjections of cobalt chloride (CoCl(2), 1 mM) 10 min before or after conditioning or 10 min before re-exposure to the aversively conditioned chamber. Only those animals that received CoCl(2) before re-exposure showed a decrease in both cardiovascular and behavioral conditioned responses. These results suggest that the LSA participates in the expression, but not acquisition or consolidation, of contextual fear conditioning.

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