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| Research article summary (published 30 Oct 2002): |
Mechanisms of source confusion and discounting in short-term priming 2: effects of prime similarity and target duration.
Full Abstract
D. E. Huber, R. M. Shiffrin, K. B. Lyle, and K. I. Ruys (2001) tested two-alternative, forced-choice (2-AFC) perceptual identification in a short-term priming task. For repetition priming, passive viewing of primes resulted in a preference to choose repeated words, but actively responding to primes resulted in a preference against choosing repeated words. These results were explained with a computational model, responding optimally with unknown sources of evidence (ROUSE), using the offsetting mechanisms of source confusion and discounting. An analysis of ROUSE revealed conditions under which discounting efficacy should diminish, causing a preference for primed words even with active prime processing. Two new studies confirm 2 such conditions:
very short target flash durations and very low similarity between primes and primed choice words. These a priori predictions contrast with the a posteriori data fits of a multinomial model developed by R. Ratcliff and G. McKoon (2001).
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Author information
Author/s: Huber, David E (DE); Shiffrin, Richard M (RM); Lyle, Keith B (KB); Quach, Raushanna (R);
Affiliation: Department of Psychology, University of Colorado at Boulder, 80309-0345, USA. dhuber(-atsign-)psych.colorado.edu
Grants: 12717 (Agency:United States PHS) ; MH19879 (Agency:United States NIMH)
Journal and publication information
Publication Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.
Journal: Journal of experimental psychology. Learning, memory, and cognition (J Exp Psychol Learn Mem Cogn), published in United States. (Language: eng)
Reference: 2002-Nov; vol 28 (issue 6) : pp 1120-36
Dates: Created 2002/11/26; Completed 2003/03/27; Revised 2007/11/14;
PMID: 12450337, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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