Is Perruchet's Dissociation Between Eyeblink Conditioned Responding and Outcome Expectancy Evidence for Two Learning Systems?

Weidemann, Gabrielle, Tangen, Jason M., Lovibond, Peter F. and Christopher J. Mitchell (2009) Is Perruchet's Dissociation Between Eyeblink Conditioned Responding and Outcome Expectancy Evidence for Two Learning Systems?. Journal of Experimental Psychology: Animal Behavior Processes, 35 2: 169-176. doi:10.1037/a0013294


Author Weidemann, Gabrielle
Tangen, Jason M.
Lovibond, Peter F.
Christopher J. Mitchell
Title Is Perruchet's Dissociation Between Eyeblink Conditioned Responding and Outcome Expectancy Evidence for Two Learning Systems?
Journal name Journal of Experimental Psychology: Animal Behavior Processes   Check publisher's open access policy
ISSN 0097-7403
Publication date 2009-01-01
Year available 2009
Sub-type Article (original research)
DOI 10.1037/a0013294
Open Access Status
Volume 35
Issue 2
Start page 169
End page 176
Total pages 8
Editor Anthony Dickinson
Place of publication United States
Publisher American Psychological Association
Language eng
Subject 170202 Decision Making
970117 Expanding Knowledge in Psychology and Cognitive Sciences
C1
Abstract P. Perruchet (1985b) showed a double dissociation of conditioned responses (CRs) and expectancy for an airpuff unconditioned stimulus (US) in a 50% partial reinforcement schedule in human eyeblink conditioning. In the Perruchet effect, participants show an increase in CRs and a concurrent decrease in expectancy for the airpuff across runs of reinforced trials; conversely, participants show a decrease in CRs and a concurrent increase in expectancy for the airpuff across runs of nonreinforced trials. Three eyeblink conditioning experiments investigated whether the linear trend in eyeblink CRs in the Perruchet effect is a result of changes in associative strength of the conditioned stimulus (CS), US sensitization, or learning the precise timing of the US. Experiments 1 and 2 demonstrated that the linear trend in eyeblink CRs is not the result of US sensitization. Experiment 3 showed that the linear trend in eyeblink CRs is present with both a fixed and a variable CS–US interval and so is not the result of learning the precise timing of the US. The results are difficult to reconcile with a single learning process model of associative learning in which expectancy mediates CRs.
Keyword eyeblink conditioning
expectancy
humans
conditioned stimulus
unconditioned stimulus
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID DP0774395
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Psychology Publications
 
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Created: Thu, 03 Sep 2009, 18:18:05 EST by Mr Andrew Martlew on behalf of Faculty of Social & Behavioural Sciences