PMID- 17448703 OWN - NLM STAT- MEDLINE DCOM- 20070831 LR - 20071017 IS - 1074-7427 (Print) IS - 1074-7427 (Linking) VI - 88 IP - 1 DP - 2007 Jul TI - Time-courses of Fos expression in rat hippocampus and neocortex following acquisition and recall of a socially transmitted food preference. PG - 65-74 AB - The present study examined expression of the immediate-early gene, c-Fos, following acquisition, 48-h (recent) recall, and 1-week (remote) recall of a socially transmitted food preference (STFP) in multiple brain regions implicated in learning and memory. In comparisons with controls, trained Long-Evans rats had increased Fos immunoreactivity in the ventral hippocampus following acquisition and recent recall. In the parahippocampal cortices, Fos was increased in the lateral entorhinal cortex after acquisition. In the orbitofrontal cortex, increased Fos immunoreactivity was observed in the lateral orbital cortex following both recent and remote recall and in the ventral orbital cortex following remote recall, indicating a role for the orbitofrontal cortex in the remote recall of STFP memory. In contrast, in the medial prefrontal cortex, increased Fos-ir was found following acquisition in the prelimbic cortex and following recent recall in the prelimbic and infralimbic cortices. No differences in Fos expression were found between trained rats and controls in the dorsal hippocampus, posterior parietal cortex, or amygdala. The present findings support a time-limited role of the hippocampus in the acquisition and recall of STFP memory and implicate neocortical regions involved in STFP acquisition, recent, and remote recall. FAU - Smith, Clayton A AU - Smith CA AD - Neuroscience Program, Tulane University, New Orleans, LA 70118, USA. FAU - Countryman, Renee A AU - Countryman RA FAU - Sahuque, Lacey L AU - Sahuque LL FAU - Colombo, Paul J AU - Colombo PJ LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20070419 PL - United States TA - Neurobiol Learn Mem JT - Neurobiology of learning and memory JID - 9508166 RN - 0 (Proto-Oncogene Proteins c-fos) SB - IM MH - Analysis of Variance MH - Animals MH - Association Learning/physiology MH - Entorhinal Cortex/metabolism MH - Food Preferences/*physiology MH - Frontal Lobe/metabolism MH - Hippocampus/*metabolism MH - Imitative Behavior/physiology MH - Male MH - Mental Recall/*physiology MH - Neocortex/*metabolism MH - Prefrontal Cortex/metabolism MH - Proto-Oncogene Proteins c-fos/*metabolism MH - Rats MH - Rats, Long-Evans MH - *Social Behavior MH - Time Factors MH - Tissue Distribution EDAT- 2007/04/24 09:00 MHDA- 2007/09/01 09:00 CRDT- 2007/04/24 09:00 PHST- 2007/02/12 00:00 [received] PHST- 2007/03/06 00:00 [revised] PHST- 2007/03/06 00:00 [accepted] PHST- 2007/04/24 09:00 [pubmed] PHST- 2007/09/01 09:00 [medline] PHST- 2007/04/24 09:00 [entrez] AID - S1074-7427(07)00026-3 [pii] AID - 10.1016/j.nlm.2007.03.001 [doi] PST - ppublish SO - Neurobiol Learn Mem. 2007 Jul;88(1):65-74. doi: 10.1016/j.nlm.2007.03.001. Epub 2007 Apr 19.