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| Research article summary (published 29 Jun 2002): |
Inhibition and blindness to response-compatible stimuli: a reappraisal.
Full Abstract
Recent studies show that the preparation of an action can interfere with the concurrent detection and identification of objects that share features with this action, a phenomenon termed blindness to response-compatible stimuli. In order to account for the blindness effect, an integration mechanism for response features similar to the one suggested for object features has been proposed. In the present article, we propose an alternative explanation, namely an action-effect inhibition mechanism. This mechanism was demonstrated in two versions of a dual-task experiment using a primary stop-signal task. The results showed that when the primary response was withheld (signal-inhibit trials), this resulted in lower identification rates for compatible secondary task stimuli. On the other hand, we did not find any evidence for a blindness effect when the primary response was executed (no-signal trials). Additionally we found that identification rates depended on the time course of the inhibition process as estimated from our data. Consequently, the blindness effect seems to result from the requirement to inhibit the response, perhaps even if only temporary.
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Author information
Author/s: Caessens, Bernie (B); Vandierendonck, André (A);
Affiliation: Department of Experimental Psychology, Ghent University, Belgium. bernie.caessens(-atsign-)rug.ac.be
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Acta psychologica (Acta Psychol (Amst)), published in Netherlands. (Language: eng)
Reference: 2002-Jul; vol 111 (issue 1) : pp 45-57
Dates: Created 2002/07/09; Completed 2002/10/10; Revised 2006/11/15;
PMID: 12102120, 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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