Abstract:
:Two conditioned taste aversion experiments with rats assessed the relative effectiveness in providing evidence of within-compound learning of different procedures that involve the initial compound presentation of two stimuli, A and X, with the unconditioned stimulus (i.e., AX+). In Experiment 1, following a single AX+ trial, groups A+ and B+ received an additional conditioning trial (i.e., inflation treatment) with A and B, respectively, whereas group A- received an extinction trial (i.e., deflation treatment) with A. The results showed a reduction in the aversion elicited by the target stimulus, X, in group A- relative to both groups A+ and B+, which did not differ. Experiment 2 further investigated the failure of group A+ to increase the aversion to X relative to control group B+ by pairing A or B with either the same unconditioned stimulus that was previously paired with AX (groups A+ and B+) or with a stronger unconditioned stimulus (groups A* and B*). The results showed increased aversion to X in group A* relative to group B*, but not in group A+ relative to group B+. These results are interpreted as indicative of extinction of the within-compound association during the treatment with A, which could likely impair the detection of within-compound learning following an inflation, but not a deflation treatment.
journal_name
Behav Processesjournal_title
Behavioural processesauthors
Pineño Odoi
10.1016/j.beproc.2007.01.004subject
Has Abstractpub_date
2007-05-01 00:00:00pages
33-9issue
1eissn
0376-6357issn
1872-8308pii
S0376-6357(07)00005-8journal_volume
75pub_type
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