PMID- 23333841 OWN - NLM STAT- MEDLINE DCOM- 20130828 LR - 20130307 IS - 1872-7549 (Electronic) IS - 0166-4328 (Linking) VI - 243 DP - 2013 Apr 15 TI - Are you real? Visual simulation of social housing by mirror image stimulation in single housed mice. PG - 191-8 LID - S0166-4328(13)00025-9 [pii] LID - 10.1016/j.bbr.2013.01.015 [doi] AB - Individual housing of social species is a common phenomenon in laboratory animal facilities. Single housing, however, is known to inflict social deprivation with a number of detrimental consequences. Aiming to improve housing conditions of single housed rodents, we investigated the simulation of social housing by mirrors in a series of behavioural experiments and biochemical parameters in mice. We found that chronic mirror-image stimulation increased exploratory behaviours in the holeboard and novel cage tests, but did not alter anxiety, locomotor, or depression-like behaviours. Moreover, no influence on visual recognition memory was observed. Hippocampal brain-derived neurotrophic factor (BDNF) levels, a biomarker for enrichment effects, were unaltered. In line, mirror-image stimulation did not alter home cage behaviour in mice housed with and without mirrors when left undisturbed. Thus, though we found subtle behavioural effects after long-term mirror exposure, we conclude that the simulation of social housing by mirrors is not sufficient to gain the presumably beneficial outcomes induced by social housing. CI - Copyright (c) 2013 Elsevier B.V. All rights reserved. FAU - Fuss, Johannes AU - Fuss J AD - RG Animal Models in Psychiatry, Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, J 5, 68159 Mannheim, Germany. johannes.fuss@zi-mannheim.de FAU - Richter, S Helene AU - Richter SH FAU - Steinle, Jorg AU - Steinle J FAU - Deubert, Gerald AU - Deubert G FAU - Hellweg, Rainer AU - Hellweg R FAU - Gass, Peter AU - Gass P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130117 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 SB - IM MH - Animals MH - Anxiety/physiopathology MH - Behavior, Animal/*physiology MH - *Environment MH - Exploratory Behavior/physiology MH - Female MH - Hippocampus/*metabolism/pathology MH - Housing, Animal/*standards MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Neuropsychological Tests MH - Social Isolation/*psychology EDAT- 2013/01/22 06:00 MHDA- 2013/08/29 06:00 CRDT- 2013/01/22 06:00 PHST- 2012/11/28 00:00 [received] PHST- 2013/01/07 00:00 [revised] PHST- 2013/01/11 00:00 [accepted] PHST- 2013/01/22 06:00 [entrez] PHST- 2013/01/22 06:00 [pubmed] PHST- 2013/08/29 06:00 [medline] AID - S0166-4328(13)00025-9 [pii] AID - 10.1016/j.bbr.2013.01.015 [doi] PST - ppublish SO - Behav Brain Res. 2013 Apr 15;243:191-8. doi: 10.1016/j.bbr.2013.01.015. Epub 2013 Jan 17.