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| Research article summary (published 30 Dec 2001): |
Global precedence and response activation: evidence from LRPs.
Full Abstract
Lateralized readiness potentials (LRPs) were measured in left/right/no-go tasks using compound global/local stimuli. In Experiment 1, participants responded to local target shapes and ignored global ones. RTs were affected by the congruence of the global shape with the local one, and LRPs indicated that irrelevant global shapes activated the responses with which they were associated. In Experiment 2, participants responded to conjunctions of target shapes at both levels, withholding the response if a target appeared at only one level. Global shapes activated responses in no-go trials, but local shapes did not. The results are consistent with partial-output models in which preliminary information about global shape can partially activate responses that are inconsistent with the local shape. They also demonstrate that part of the global advantage arises early, before response activation begins and probably before recognition of the local shape.
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Author information
Author/s: Miller, Jeff (J); Navon, David (D);
Affiliation: Department of Psychology, University of Otago, Dunedin, New Zealand. miller@otago.ac.nz
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: The Quarterly journal of experimental psychology. A, Human experimental psychology (Q J Exp Psychol A), published in England. (Language: eng)
Reference: 2002-Jan; vol 55 (issue 1) : pp 289-310
Dates: Created 2002/03/04; Completed 2002/05/07; Revised 2006/11/15;
PMID: 11873852, 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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