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An electromyographic investigation of the effect of stimulus–response mapping on choice reaction time

Published online by Cambridge University Press:  18 January 2001

THIERRY HASBROUCQ ,
BORÍS BURLE ,
MOTOYUKI AKAMATSU ,
FRANCK VIDAL  and
CAMILLE-AIMÉ POSSAMAÏ
THIERRY HASBROUCQ
Affiliation:
Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France Institut de Médecine Navale du Service de Santé des Armées, Toulon, France
BORÍS BURLE
Affiliation:
Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France
MOTOYUKI AKAMATSU
Affiliation:
Neuro-Informatics Laboratory, National Institute of Bioscience and Human Technology, Tsukuba, Japan
FRANCK VIDAL
Affiliation:
Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France Institut de Médecine Navale du Service de Santé des Armées, Toulon, France
CAMILLE-AIMÉ POSSAMAÏ
Affiliation:
Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France
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Abstract

The activity of the agonist muscles was recorded during the performance of a two-choice visual reaction time (RT) task in which the compatibility of the stimulus–response mapping was manipulated. Correct trials were distinguished according to whether or not the activation of the agonist of the required response was preceded by an activation of the agonist of the nonrequired response. Double activation trials were more numerous for the incompatible than for the compatible mapping. Furthermore, these trials yielded longer RTs than the single muscular activation trials. These results suggest that initial activations of nonrequired responses are more frequently aborted and corrected when the mapping is incompatible than when it is compatible. This finding supports the dimensional overlap model of stimulus–response compatibility (S. Kornblum, T. Hasbroucq, & A. Osman, 1990).

Keywords

Stimulus–response compatibilityResponse activationExecutive controlMotor processes
Type
BRIEF REPORTS
Information
Psychophysiology , Volume 38 , Issue 1 , January 2001 , pp. 157 - 162
Copyright
2001 Society for Psychophysiological Research

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