title: Serial overshadowing of taste aversion learning by stimuli preceding the target taste.
abstract: Three experiments tested whether events taking place before a rat has access to a target taste, sucrose, can proactively interfere with the acquisition of a sucrose aversion when sucrose is followed by a lithium chloride injection. Using a serial overshadowing procedure with various delays before lithium injection, proactive interference by a taste (Experiments 1 and 3) and by a novel context (Experiment 2) was found following two conditioning sessions, but not after a single conditioning session. Conversely, overshadowing by a taste given after the target was detectable after a single conditioning trial (Experiment 3) and, thus, indicated that retroactive interference involves a process different from that producing proactive interference. A simulation confirmed that the results are consistent with a modified Rescorla and Wagner (1972) interpretation of Revusky's (1971) concurrent interference theory of delay learning.
authors.affiliation: University of Sydney, Sydney, Australia.
authors.forename: Dorothy W S
authors.initials: DW
authors.lastname: Kwok
authors.forename: Evan J
authors.initials: EJ
authors.lastname: Livesey
authors.forename: Robert A
authors.initials: RA
authors.lastname: Boakes
mesh_terms: D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects / Q000502:physiology*; D003216:Conditioning, Operant / Q000187:drug effects / Q000502:physiology*; D003463:Cues; D018021:Lithium Chloride / Q000494:pharmacology; D008297:Male; D051381:Rats; D017208:Rats, Wistar; D013649:Taste / Q000187:drug effects / Q000502:physiology*; D055697:Taste Perception / Q000187:drug effects / Q000502:physiology*
chemical_list: D018021:Lithium Chloride