Journal
BEHAVIOURAL BRAIN RESEARCH
Volume 108, Issue 1, Pages 47-56Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0166-4328(99)00132-1
Keywords
dog; spatial; memory; canine; cognition; aging; delayed non-matching to position
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Funding
- NIA NIH HHS [AG12694] Funding Source: Medline
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Spatial learning and memory in young and old dogs was studied in a series of experiments using a delayed non-matching to position (DNMP) paradigm. Past research from our laboratory has suggested that aged dogs perform more poorly on a version of the DNMP task compared to young dogs [Head et al., Spatial learning and memory as a function of age in the dog, Behav. Neurosci. 1995;109(5):851-585]. We have now extended these findings by testing a large number of dogs on three different variations of the DNMP paradigm to evaluate different aspects of spatial learning and memory. Our results indicate that: (1) aged dogs show impaired spatial learning compared to young dogs, (2) aged dogs display spatial working memory deficits compared to young dogs, (3) young dogs have a greater maximum working spatial memory capacity than old dogs and (4) we can use the DNMP paradigm to cognitively categorize different subsets of aged dogs. These data indicate that the DNMP paradigm can serve as a valuable tool to evaluate age-dependent cognitive dysfunction in the canine. (C) 2000 Elsevier Science B.V. All rights reserved.
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