The Simon effect with wheel-rotation responses.

J Mot Behav

Department of Psychological Sciences, Purdue University, 703 3rd Street, West Lafayette, IN 47907-2004, USA. wdy92@ psych.purdue.edu

Published: September 2003

The authors examined clockwise and counterclockwise wheel-rotation responses to high- or low-pitched tones presented in participants' (N = 96, Experiment 1; N = 48, Experiment 2; N = 48, Experiment 3) left and right ears. In Experiment 1, a Simon effect (fastest responding when tone location and direction of wheel turn corresponded) was obtained when participants' hands were at the top or middle of the wheel but not at the bottom. With the bottom hand placement, a Simon effect was induced by instructions emphasizing hand movements but not by instructions emphasizing wheel movements (Experiment 2), and by a visual cursor controlled by the wheel but not one triggered by the response (Experiment 3). The results of the experiments showed that the nature of the task and the instructed action goal influence the direction of the Simon effect.

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http://dx.doi.org/10.1080/00222890309602139DOI Listing

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