Depression of an instrumental response by a single devaluation of its outcome.
In three experiments rats were trained to make two different instrumental responses for different outcomes. Then the outcomes were given a single differential conditioning experience with lithium chloride. That differential treatment was sufficient to produce differential instrumental responding in a subsequent test. Re-exposure to the devalued outcome was not necessary for an impact on instrumental performance.
Rescorla
R A
RA
Department of Psychology, University of Pennsylvania, Philadelphia 19104.
D000818:Animals; D001245:Association Learning / Q000187:drug effects; D001362:Avoidance Learning / Q000187:drug effects; D002712:Chlorides / Q000633:toxicity; D003214:Conditioning, Classical / Q000187:drug effects; D008094:Lithium / Q000633:toxicity; D018021:Lithium Chloride; D008297:Male; D009042:Motivation; D051381:Rats; D011919:Rats, Inbred Strains; D013649:Taste / Q000187:drug effects
D002712:Chlorides; D008094:Lithium; D018021:Lithium Chloride