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

Authors

  • Thierry Hasbroucq,

    Corresponding author
    1. Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France
    2. Institut de Médecine Navale du Service de Santé des Armées, Toulon, France
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  • Borís Burle,

    1. Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France
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  • Motoyuki Akamatsu,

    1. Neuro-Informatics Laboratory, National Institute of Bioscience and Human Technology, Tsukuba, Japan
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  • Franck Vidal,

    1. Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France
    2. Institut de Médecine Navale du Service de Santé des Armées, Toulon, France
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  • Camille-Aimé Possamaï

    1. Centre de Recherche en Neurosciences Cognitives, Centre National de la Recherche Scientifique, Marseille, France
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Address reprint requests to: Thierry Hasbroucq, CNRS-CRNC, 31 chemin Joseph Aiguier, 13402 Marseille cedex 20, France. E-mail: thierry@lnf.cnrs-mrs.fr.

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).

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