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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1996-8-22
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pubmed:abstractText |
Male and female Fischer 344 rats (N = 55) aged approximately 18, 21, and 24 months were tested for spatial learning in the water maze with intertrial intervals of 1-4 min (Massed) or 23-33 min (Spaced). Animals tested in the Massed condition showed an age-related impairment on trials to criterion; rats aged 24 months performed more poorly than younger subjects. Spaced animals did not differ at any age nor did they differ from 18- or 21-month-old Massed subjects. The youngest rats in both groups were comparable to animals aged 7-8 months tested under Massed conditions. Tests on swim distance, swim speed, and escape latency produced similar results. Our data suggest that acquisition deficits in 24-month-old rats tested with long intertrial intervals are due at least in part to increased susceptibility to fatigue and/or thermal stress. Caution should be used, therefore, when interpreting age-related impairments in water maze performance.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
1079-5006
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
51
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
B253-60
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8680989-Aging,
pubmed-meshheading:8680989-Animals,
pubmed-meshheading:8680989-Disease Susceptibility,
pubmed-meshheading:8680989-Escape Reaction,
pubmed-meshheading:8680989-Fatigue,
pubmed-meshheading:8680989-Female,
pubmed-meshheading:8680989-Male,
pubmed-meshheading:8680989-Maze Learning,
pubmed-meshheading:8680989-Monoamine Oxidase Inhibitors,
pubmed-meshheading:8680989-Psychomotor Performance,
pubmed-meshheading:8680989-Rats,
pubmed-meshheading:8680989-Rats, Inbred F344,
pubmed-meshheading:8680989-Reaction Time,
pubmed-meshheading:8680989-Selegiline,
pubmed-meshheading:8680989-Stress, Physiological,
pubmed-meshheading:8680989-Swimming,
pubmed-meshheading:8680989-Temperature,
pubmed-meshheading:8680989-Time Factors,
pubmed-meshheading:8680989-Water
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pubmed:year |
1996
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pubmed:articleTitle |
Short intertrial intervals impair water maze performance in old Fischer 344 rats.
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pubmed:affiliation |
Life Sciences Division, University of Toronto, Scarborough, Ontario.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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