Linked Life Data

17918421

Source:http://linkedlifedata.com/resource/pubmed/id/17918421

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2007-10-8
pubmed:abstractText
The objective was to determine whether rats could learn to time a 48-h interval. Rats (n = 6) were continuously housed in operant chambers in constant darkness. The feeding cycle consisted of unlimited access to food for 6 h, followed by 42 h without access to food (i.e., meals were available on alternate days, contingent on breaking a photobeam in the food trough). Head entries into the trough increased as a function of time prior to the meal; this increase was higher, relative to the increase that occurred at the same time of day on alternate (i.e., nonfood) days. These data suggest that rats discriminated alternate days. Next, two meals were omitted to dissociate mechanisms of a self-sustained endogenous rhythm, interval timing, and alternation. Response rate increased periodically every 24 h, which suggests that the rats anticipated alternate days by discriminating the status of the previous day as a meal or a nonmeal day.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1543-4494
pubmed:author
pubmed:issnType
Print
pubmed:volume
35
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
163-8
pubmed:dateRevised
2011-1-24
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Temporal discrimination of alternate days in rats.
pubmed:affiliation
University of York, York, England.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural