Dominance-related changes in spatial memory are associated with changes in hippocampal cell proliferation rates in mountain chickadees

Journal of Neurobiology
Vladimir V Pravosudov, Alicja Omanska

Abstract

It is well established that spatial memory is dependent on the hippocampus in both mammals and birds. As memory capacity can fluctuate on a temporal basis, it is important to understand the mechanisms mediating such changes. It is known that early memory-dependent experiences in young animals result in hippocampal enlargement and in increased neurogenesis, including cell proliferation and neuron survival. It is less clear, however, whether temporal changes in spatial memory are also associated with changes in hippocampal anatomy and cell proliferation in fully grown and experienced adult animals. In a previous study, we experimentally demonstrated that socially subordinate mountain chickadees (Poecile gambeli) showed inferior spatial memory performance compared to their dominant group mates, in the absence of significant differences in baseline corticosterone levels. Here we investigated whether these differences in memory between dominant and subordinate birds were associated with changes in the hippocampus. Following memory tests, chickadees were injected with 5-bromo-2'-deoxyuridine to label dividing cells and sacrificed 2 days after the injections. We found no significant differences in volume or the total number of neurons...Continue Reading

References

Jun 1, 1990·The Journal of Comparative Neurology·M J West, H J Gundersen
Feb 1, 1989·Proceedings of the National Academy of Sciences of the United States of America·J R KrebsA L Vaccarino
Sep 1, 1987·Journal of Microscopy·H J Gundersen, E B Jensen
May 1, 1995·Journal of Neurobiology·T V SmuldersT J DeVoogd
Nov 8, 1994·Proceedings of the National Academy of Sciences of the United States of America·A Barnea, F Nottebohm
Aug 2, 1994·Proceedings of the National Academy of Sciences of the United States of America·N S Clayton, J R Krebs
Aug 21, 1995·Neuroreport·J R KrebsS J Shettleworth
Feb 25, 1998·Behavioural Brain Research·S N PatelJ R Krebs
May 14, 1999·Trends in Cognitive Sciences·E GouldT J Shors
Dec 22, 1999·Biological Psychiatry·E Gould, P Tanapat
May 29, 2002·Brain Research Bulletin·Fernando Nottebohm
Nov 14, 2003·Proceedings of the National Academy of Sciences of the United States of America·Elodie DrapeauDjoher Nora Abrous
Dec 13, 2003·Neurobiology of Learning and Memory·Jos PrickaertsArjan Scheepens

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Citations

Nov 23, 2005·Behavioral Neuroscience·Vladimir V PravosudovAlicja Omanska
Sep 28, 2006·Proceedings. Biological Sciences·Vladimir V PravosudovAlicja Omanska
Oct 24, 2008·Proceedings. Biological Sciences·Timothy C Roth, Vladimir V Pravosudov
Nov 27, 2009·Proceedings. Biological Sciences·Lara D LaDageVladimir V Pravosudov
Feb 4, 2011·Proceedings. Biological Sciences·Timothy C RothVladimir V Pravosudov
Dec 2, 2005·Annual Review of Psychology·David F Sherry
Jun 24, 2009·Brain, Behavior and Evolution·Lara D LaDageVladimir V Pravosudov
Jun 16, 2009·The Journal of Experimental Biology·Kaushik GhosalKathleen A Killian
Mar 13, 2014·Neuroscience·D E PeragineM M Holmes
Mar 1, 2009·Behavioural Processes·David F Sherry, Jennifer S Hoshooley
Mar 4, 2008·Animal Behaviour·Vladimir V PravosudovThomas P Hahn
Sep 21, 2011·The European Journal of Neuroscience·Anat Barnea, Vladimir Pravosudov
Oct 16, 2010·Developmental Neurobiology·Leia V ChancellorVladimir V Pravosudov
Feb 18, 2010·Animal Behaviour·Rebecca A FoxVladimir V Pravosudov
Dec 7, 2017·PloS One·Barbara-Anne RobertsonTom V Smulders
Apr 20, 2007·Developmental Neurobiology·Jennifer S Hoshooley, David F Sherry
Jul 11, 2007·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Prisca ChapoutonLaure Bally-Cuif
Oct 9, 2009·Developmental Neurobiology·Bernard A TarrTimothy J DeVoogd
Jan 18, 2006·Hippocampus·Liisa A M GaleaJodi L Pawluski
May 18, 2006·Reviews in the Neurosciences·Tom Victor Smulders
Dec 14, 2004·Proceedings. Biological Sciences·Jeffrey R LucasNicola S Clayton
Apr 3, 2007·The Journal of Experimental Biology·Cha-Kyong SongDonald H Edwards
Nov 18, 2021·Proceedings. Biological Sciences·Virginia K HeinenVladimir V Pravosudov

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