Effect of bilingualism and computer video game experience on the Simon task.

A group of 97 participants who were monolingual or bilingual and who had extensive practice playing computer video games or not completed two Simon tasks. The tasks were presented in two conditions that manipulated the number of response switches required in each block of trials. Bilingualism and video-game experience each influenced a different aspect of performance: Video-game players were faster in most conditions, including control conditions that did not include conflict from irrelevant position; bilinguals were faster only in a condition that required the most controlled attention to resolve conflict from the position and the stimulus. The results show the potential of experience to modify performance and point to subtle processing differences in various versions of the Simon task.