PMID- 36765118 OWN - NLM STAT- MEDLINE DCOM- 20230214 LR - 20230331 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 13 IP - 1 DP - 2023 Feb 10 TI - Patterns of Arc mRNA expression in the rat brain following dual recall of fear- and reward-based socially acquired information. PG - 2429 LID - 10.1038/s41598-023-29609-6 [doi] LID - 2429 AB - Learning can occur via direct experience or through observation of another individual (i.e., social learning). While research focused on understanding the neural mechanisms of direct learning is prevalent, less work has examined the brain circuitry mediating the acquisition and recall of socially acquired information. Here, we aimed to further elucidate the mechanisms underlying recall of socially acquired information by having male and female rats sequentially recall a socially transmitted food preference (STFP) and a fear association via fear conditioning by-proxy (FCbP). Brain tissue was processed for mRNA expression of the immediate early gene (IEG) Arc, which expresses in the nucleus following transcription before migrating to the cytoplasm over the next 25 min. Given this timeframe, we could identify whether Arc transcription was triggered by STFP recall, FCbP recall, or both. Contrary to past research, we found no differences in any Arc expression measures across a number of prefrontal regions and the ventral CA3 of the hippocampus between controls, demonstrators, and observers. We theorize that these results may indicate that relatively little Arc-dependent neural restructuring is taking place in the prefrontal cortices and ventral CA3 following recall of recently socially acquired information or directly acquired fear associations in these areas. CI - (c) 2023. The Author(s). FAU - Agee, Laura A AU - Agee LA AD - Department of Psychology, The University of Texas at Austin, Austin, TX, USA. FAU - Hilz, Emily N AU - Hilz EN AD - Department of Psychology, The University of Texas at Austin, Austin, TX, USA. FAU - Jun, Dohyun AU - Jun D AD - Department of Psychology, The University of Texas at Austin, Austin, TX, USA. FAU - Nemchek, Victoria AU - Nemchek V AD - Department of Psychology, The University of Texas at Austin, Austin, TX, USA. FAU - Lee, Hongjoo J AU - Lee HJ AD - Department of Psychology, The University of Texas at Austin, Austin, TX, USA. AD - Institute for Neuroscience, The University of Texas at Austin, Austin, TX, USA. FAU - Monfils, Marie-H AU - Monfils MH AD - Department of Psychology, The University of Texas at Austin, Austin, TX, USA. marie.monfils@utexas.edu. AD - Institute for Neuroscience, The University of Texas at Austin, Austin, TX, USA. marie.monfils@utexas.edu. LA - eng GR - T32 MH106454/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20230210 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (RNA, Messenger) SB - IM MH - Rats MH - Male MH - Female MH - Animals MH - *Mental Recall MH - *Hippocampus/metabolism MH - Fear MH - Reward MH - RNA, Messenger/genetics/metabolism PMC - PMC9918527 COIS- The authors declare no competing interests. EDAT- 2023/02/11 06:00 MHDA- 2023/02/15 06:00 PMCR- 2023/02/10 CRDT- 2023/02/10 23:44 PHST- 2022/11/05 00:00 [received] PHST- 2023/02/07 00:00 [accepted] PHST- 2023/02/11 06:00 [pubmed] PHST- 2023/02/15 06:00 [medline] PHST- 2023/02/10 23:44 [entrez] PHST- 2023/02/10 00:00 [pmc-release] AID - 10.1038/s41598-023-29609-6 [pii] AID - 29609 [pii] AID - 10.1038/s41598-023-29609-6 [doi] PST - epublish SO - Sci Rep. 2023 Feb 10;13(1):2429. doi: 10.1038/s41598-023-29609-6.