Document Detail

Stimulus-set location does not affect orthogonal stimulus-response compatibility.
MedLine Citation:
PMID:  14634811     Owner:  NLM     Status:  MEDLINE    
In two-choice tasks for which stimuli and responses vary along orthogonal dimensions, one stimulus-response mapping typically yields better performance than another. For unimanual movement responses, the hand used to respond, hand posture (prone or supine), and response eccentricity influence this orthogonal stimulus-response compatibility (SRC) effect. All accounts of these phenomena attribute them to response-related processes. Two experiments examined whether manipulation of stimulus-set position along the dimension on which the stimuli varied influences orthogonal SRC in a manner similar to the way that response location does. The experiments differed in whether the stimulus dimension was vertical and the response dimension horizontal, or vice versa. In both experiments, an advantage of mapping up with right and down with left was evident for several response modes, and stimulus-set position had no influence on the orthogonal SRC effect. The lack of effect of stimulus-set position is in agreement with the emphasis that present accounts place on response-related processes. We favor a multiple asymmetric codes account, for which the present findings imply that the polarity of stimulus codes does not vary across task contexts although the polarity of response codes does.
Yang Seok Cho; Robert W Proctor
Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial     Date:  2003-11-22
Journal Detail:
Title:  Psychological research     Volume:  69     ISSN:  0340-0727     ISO Abbreviation:  Psychol Res     Publication Date:  2004 Dec 
Date Detail:
Created Date:  2004-12-03     Completed Date:  2005-03-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0435062     Medline TA:  Psychol Res     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  106-14     Citation Subset:  IM    
Department of Psychological Sciences, Purdue University, W. Lafayette, IN 47907-2081, USA.
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MeSH Terms
Reaction Time*
Space Perception*

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