Document Detail

Validity and boundary conditions of automatic response activation in the Simon task.
MedLine Citation:
PMID:  11424658     Owner:  NLM     Status:  MEDLINE    
Three experiments were conducted to determine whether spatial stimulus-response compatibility effects are caused by automatic response activation by stimulus properties or by interference between codes during translation of stimulus into response coordinates. The main evidence against activation has been that in a Simon task with hands crossed, responses are faster at the response location ipsilateral to the stimulus though manipulated by the hand contralateral to the stimulus. The experiments were conducted with hands in standard and in crossed positions and electroencephalogram measures showed coactivation of the motor cortex induced by stimulus position primarily during standard hand positions with visual stimuli. Only in this condition did the Simon effect decay with longer response times. The visual Simon effect appeared to be due to specific mechanisms of visuomotor information transmission that are not responsible for the effects obtained with crossed hands or auditory stimuli.
E Wascher; U Schatz; T Kuder; R Verleger
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of experimental psychology. Human perception and performance     Volume:  27     ISSN:  0096-1523     ISO Abbreviation:  J Exp Psychol Hum Percept Perform     Publication Date:  2001 Jun 
Date Detail:
Created Date:  2001-06-26     Completed Date:  2001-12-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7502589     Medline TA:  J Exp Psychol Hum Percept Perform     Country:  United States    
Other Details:
Languages:  eng     Pagination:  731-51     Citation Subset:  IM    
Department of Clinical and Physiological Psychology, University of Tuebingen, Tuebingen, Germany.
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MeSH Terms
Attention* / physiology
Brain Mapping
Cerebral Cortex / physiology
Dominance, Cerebral / physiology
Evoked Potentials / physiology
Functional Laterality* / physiology
Orientation* / physiology
Psychomotor Performance* / physiology
Reaction Time / physiology
Comment In:
J Exp Psychol Hum Percept Perform. 2003 Feb;29(1):152-8   [PMID:  12669754 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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