PMID- 36001975 OWN - NLM STAT- MEDLINE DCOM- 20220826 LR - 20221013 IS - 2211-1247 (Electronic) VI - 40 IP - 8 DP - 2022 Aug 23 TI - The Bruce effect: Representational stability and memory formation in the accessory olfactory bulb of the female mouse. PG - 111262 LID - S2211-1247(22)01080-4 [pii] LID - 10.1016/j.celrep.2022.111262 [doi] AB - In the Bruce effect, a mated female mouse becomes resistant to the pregnancy-blocking effect of the stud. Various lines of evidence suggest that this form of behavioral imprinting results from reduced sensitivity of the female's accessory olfactory bulb (AOB) to the stud's chemosignals. However, the AOB's combinatorial code implies that diminishing responses to one individual will distort representations of other stimuli. Here, we record extracellular responses of AOB neurons in mated and unmated female mice while presenting urine stimuli from the stud and from other sources. We find that, while initial sensory responses in the AOB (within a timescale required to guide social interactions) remain stable, responses to extended stimulation (as required for eliciting the pregnancy block) display selective attenuation of stud-responsive neurons. Such temporal disassociation could allow attenuation of slow-acting endocrine processes in a stimulus-specific manner without compromising ongoing representations that guide behavior. CI - Copyright (c) 2022 The Author(s). Published by Elsevier Inc. All rights reserved. FAU - Yoles-Frenkel, Michal AU - Yoles-Frenkel M AD - Department of Medical Neurobiology, Hebrew University Medical School, Faculty of Medicine, Institute for Medical Research Israel Canada, the Hebrew University, Jerusalem 91120, Israel. FAU - Shea, Stephen D AU - Shea SD AD - Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA. FAU - Davison, Ian G AU - Davison IG AD - Department of Biology, Boston University, Boston, MA 02215, USA. FAU - Ben-Shaul, Yoram AU - Ben-Shaul Y AD - Department of Medical Neurobiology, Hebrew University Medical School, Faculty of Medicine, Institute for Medical Research Israel Canada, the Hebrew University, Jerusalem 91120, Israel. Electronic address: yoramb@ekmd.huji.ac.il. LA - eng GR - R01 DC017234/DC/NIDCD NIH HHS/United States GR - R01 MH119250/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Cell Rep JT - Cell reports JID - 101573691 SB - IM MH - Animals MH - Female MH - Mice MH - *Neurons/physiology MH - *Olfactory Bulb/physiology MH - Pregnancy PMC - PMC9446479 MID - NIHMS1832203 OTO - NOTNLM OT - Bruce effect OT - CP: Neuroscience OT - accessory olfactory bulb OT - behavioral imprinting OT - chemosensory processing OT - vomeronasal system COIS- Declaration of interests The authors declare no competing interests. EDAT- 2022/08/25 06:00 MHDA- 2022/08/27 06:00 PMCR- 2022/09/06 CRDT- 2022/08/24 18:23 PHST- 2021/11/29 00:00 [received] PHST- 2022/06/12 00:00 [revised] PHST- 2022/08/04 00:00 [accepted] PHST- 2022/08/24 18:23 [entrez] PHST- 2022/08/25 06:00 [pubmed] PHST- 2022/08/27 06:00 [medline] PHST- 2022/09/06 00:00 [pmc-release] AID - S2211-1247(22)01080-4 [pii] AID - 10.1016/j.celrep.2022.111262 [doi] PST - ppublish SO - Cell Rep. 2022 Aug 23;40(8):111262. doi: 10.1016/j.celrep.2022.111262.