Artículos de revistas
Involvement of the lateral septal area in the expression of fear conditioning to context
Fecha
2010Registro en:
LEARNING & MEMORY, v.17, n.3, p.134-138, 2010
1072-0502
10.1101/lm.1534710
Autor
REIS, Daniel G.
SCOPINHO, America A.
GUIMARAES, Francisco S.
CORREA, Fernando M. A.
RESSTEL, Leonardo B. M.
Institución
Resumen
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.