Outcome and cue properties modulate blocking

De Houwer, Jan, Beckers, Tom and Glautier, Steven (2002) Outcome and cue properties modulate blocking. The Quarterly Journal of Experimental Psychology A., 55, (3), 965-985. (doi:10.1080/02724980143000578)

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Official URL: http://dx.doi.org/10.1080/02724980143000578

Description/Abstract

Participants saw a series of situations in which a cue (a light appearing at a certain position) could be followed by an outcome (a drawing of a tank that exploded) and were afterwards asked to rate the likelihood of the outcome in the presence of the cue. In Experiments 1 and 2, the compound cues AT and KL were always followed by the outcome (AT+, KL+). During an elemental phase that either preceded or followed the compound phase, Cue A was also paired with the outcome (A+). Cue T elicited a lower rating than Cues K and L when cues were described as being weapons but not when the cues were said to be indicators. The magnitude of this blocking effect was also influenced by whether the outcome occurred to a maximal or submaximal extent. Experiment 3 replicated the effect of cue instructions on blocking (A+, AT+) but showed that cue instructions had no impact on reduced overshadowing (B-, BT+). The results shed new light on previous findings and support probabilistic contrast models of human contingency judgements.

Item Type:Article
ISSN:0272-4987 (print)
Related URLs:http://www.ncbi.nlm.nih.gov/en...uery_hl=41
http://dx.doi.org/10.1080/0272...0143000578
Subjects:B Philosophy. Psychology. Religion > BF Psychology
Divisions:University Structure - Pre August 2011 > School of Psychology > Division of Cognition
ePrint ID:18601
URI:http://eprints.soton.ac.uk/id/eprint/18601
Deposited On:30 Nov 2005
Last Modified:02 Mar 2012 11:25

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