PMID: 11932955Apr 5, 2002Paper

Changes in spatial memory mediated by experimental variation in food supply do not affect hippocampal anatomy in mountain chickadees (Poecile gambeli)

Journal of Neurobiology
Vladimir V PravosudovNicola S Clayton

Abstract

Earlier reports suggested that seasonal variation in food-caching behavior (caching intensity and cache retrieval accuracy) might correlate with morphological changes in the hippocampal formation, a brain structure thought to play a role in remembering cache locations. We demonstrated that changes in cache retrieval accuracy can also be triggered by experimental variation in food supply: captive mountain chickadees (Poecile gambeli) maintained on limited and unpredictable food supply were more accurate at recovering their caches and performed better on spatial memory tests than birds maintained on ad libitum food. In this study, we investigated whether these two treatment groups also differed in the volume and neuron number of the hippocampal formation. If variation in memory for food caches correlates with hippocampal size, then our birds with enhanced cache recovery and spatial memory performance should have larger hippocampal volumes and total neuron numbers. Contrary to this prediction we found no significant differences in volume or total neuron number of the hippocampal formation between the two treatment groups. Our results therefore indicate that changes in food-caching behavior and spatial memory performance, as mediat...Continue Reading

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Citations

Jan 15, 2004·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Vladimir V PravosudovNicola S Clayton
Nov 23, 2005·Behavioral Neuroscience·Vladimir V PravosudovAlicja Omanska
Aug 12, 2003·Proceedings. Biological Sciences·Anders Brodin, Ken Lundborg
Dec 14, 2004·Proceedings. Biological Sciences·Jeffrey R LucasNicola S Clayton
Sep 28, 2006·Proceedings. Biological Sciences·Vladimir V PravosudovAlicja Omanska
Nov 27, 2009·Proceedings. Biological Sciences·Lara D LaDageVladimir V Pravosudov
Feb 3, 2009·Biological Reviews of the Cambridge Philosophical Society·Dina K N Dechmann, Kamran Safi
Jun 24, 2009·Brain, Behavior and Evolution·Lara D LaDageVladimir V Pravosudov
Mar 4, 2008·Animal Behaviour·Vladimir V PravosudovThomas P Hahn
Jan 16, 2010·The European Journal of Neuroscience·Adeline JabèsPierre Lavenex
Oct 9, 2009·Developmental Neurobiology·Bernard A TarrTimothy J DeVoogd
May 17, 2006·Trends in Ecology & Evolution·Richard C Francis
Dec 17, 2014·Frontiers in Neuroendocrinology·David F Sherry, Scott A MacDougall-Shackleton

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