Effects of feature integration in a hands-crossed version of the Social Simon paradigm
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In previous research, hands-crossed versions of a social variant of the Simon task were used to distinguish between effector-based coding of the Social Simon effect (SSE, analogously to the standard Simon effect) or body-based coding, in which the coding of stimulus location and seating position of the participants functions as a spatial reference frame. In the present study, the analysis of the SSE with respect to previous task requirements (i.e., Simon compatibility in N−1) in a hands-crossed variant of the Social Simon task shows that neither type of coding provides a sole explanation of the pattern of a SSE. Instead, the data pattern seems to be explained more parsimoniously by the assumption of a strengthening of low level feature integration mechanisms in a social setting, taking repetitions and alternations of both agents’ stimulus and response features into account.
KeywordsSimon Effect Sequential Modulation Simon Task Incompatible Trial Compatible Trial
The present research was supported by a grant from the German Research Foundation awarded to R.L. (DFG LI 2115/1-1). The authors wish to thank Julia Haupt for help with data acquisition, Marco Steinhauser and Timothy N. Welsh for their helpful comments on a previous version of this article.
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