Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1996-8-22
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1079-5006
pubmed:author
pubmed:issnType
Print
pubmed:volume
51
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
B253-60
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Short intertrial intervals impair water maze performance in old Fischer 344 rats.
pubmed:affiliation
Life Sciences Division, University of Toronto, Scarborough, Ontario.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't