Brouillet Denis, Milhau Audrey, Brouillet Thibaut, Servajean Philippe
EPSYLON Laboratory Site St Charles, University Paul Valéry, Route de Mende, 34199, Montpellier CEDEX 5, France.
CERSM Laboratory, University Paris X, Nanterre, France.
Psychon Bull Rev. 2017 Jun;24(3):894-900. doi: 10.3758/s13423-016-1160-0.
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.
现已充分证实，运动流畅性会影响包括记忆在内的认知过程。在两项实验中，参与者学习了一组单词，然后进行了识别任务。我们实验程序的独特之处在于，在判断单词之前，他们必须执行一个流畅的手势（即输入一对字母）。这对字母由位于键盘右侧或左侧的字母组成。参与者用右手或左手食指输入字母对；所需的动作要么非常小（由相邻字母组成的字母对，实验1），要么稍大一些（由隔一个键的字母组成的字母对，实验2）。结果表明，当在同侧空间执行手势时，识别单词的概率会增加（在较小程度上，优势手也是如此，实验2）。此外，二元逻辑回归表明，识别单词的概率与执行手势的速度成正比。这些结果将根据运动差异产生的熟悉感进行讨论。
