期刊
HIPPOCAMPUS
卷 14, 期 1, 页码 19-27出版社
WILEY-BLACKWELL
DOI: 10.1002/hipo.10149
关键词
avian brain; fos; activity; hippocampus; learning; memory; imprinting
c-fos was used to mark regions of enhanced neuronal activity during sexual imprinting, an early learning process by which information about the prospective sexual partner is acquired and consolidated. In the present study, we demonstrate that the hippocampus, already known for its specialized spatial memory capacities in navigating pigeons and in food-storing birds, depicts a selective differential c-fos induction in a situation shown to lead to sexual imprinting, that is, exposing previously isolated male birds to a female for 1 h. c-fos induction is lateralized, the left hippocampus showing more c-fos activity than the right. Our results would indicate a role for the hippocampus in the consolidation process of imprinting, probably in the transfer of information to the other telencephalic areas that show alterations in synaptic connectivity as a result of consolidation of sexual imprinting. (C) 2003 Wiley-Liss, Inc.
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