Linked Life Data

6491607

Source:http://linkedlifedata.com/resource/pubmed/id/6491607

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1984-12-20
pubmed:abstractText
Two experiments using a conditioned suppression procedure with rat subjects found that postconditioning reinforcement of an inhibitory feature stimulus (X) had substantially different effects depending on whether a serial (A+, X----A-) or a simultaneous (A+, AX-) feature negative discrimination procedure was used to establish the inhibition. With the simultaneous procedure, acquisition of excitation to the previously inhibitory X was retarded when X was paired with shock. Subsequent summation tests showed no evidence of inhibition to X after reinforced X presentations. However, acquisition of excitation to X was unaffected by prior serial feature negative training, and X-shock pairings had relatively little effect on X's inhibitory power in summation tests. These data suggest that the nature of inhibition established in feature negative discriminations differs substantially depending on the temporal arrangement of stimuli. One possibility is that inhibitors established using simultaneous stimulus arrangements modulate behavior by acting on a representation of the unconditioned stimulus, but inhibitors established with serial procedures act on particular conditioned stimulus-unconditioned stimulus associations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0097-7403
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
461-75
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Differential effects of reinforcement of an inhibitory feature after serial and simultaneous feature negative discrimination training.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.