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Effect of an unrelated fluent action on word recognition: a case of motor discrepancy

Abstract : It is now well established that motor fluency affects cognitive processes, including memory. In two experiments participants learned a list of words and then performed a recognition task. The original feature of our procedure is that before judging the words they had to perform a fluent gesture (i.e., typing a letter dyad). The dyads comprised letters located on either the right or left side of the keyboard. Participants typed dyads with their right or left index finger; the required movement was either very small (dyad composed of adjacent letters, Experiment 1) or slightly larger (dyad composed of letters separated by one key, experiment 2). The results show that when the gesture was performed in the ipsilateral space the probability of recognizing a word increased (to a lesser extent it is the same with the dominant hand, experiment 2). Moreover, a binary regression logistic highlighted that the probability of recognizing a word was proportional to the speed by which the gesture was performed. These results are discussed in terms of a feeling of familiarity emerging from motor discrepancy.
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Denis Brouillet, Audrey Milhau, Thibaut Brouillet, Philippe Servajean. Effect of an unrelated fluent action on word recognition: a case of motor discrepancy. Psychonomic Bulletin and Review, Psychonomic Society, 2016, pp.1-7. ⟨10.3758/s13423-016-1160-0⟩. ⟨hal-01468280⟩



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