Bilinguals as “experts”? Comparing performance of mono- to bilingual individuals via a mousetracking paradigm

The question whether bilingualism conveys a broader advantage in executive functions has recently been controversially discussed, with the empirical findings presenting a complex pattern of positive and null results. Here we present results from three standard tasks measuring executive functions (Flanker; Simon; Spatial Stroop) in which we compared performance of English monolingual to Chinese-English bilingual young adults. Participants provided responses via movement of a computer mouse rather than the conventional key presses, which provides a rich signal of the unfolding response dynamics. Clear differences between bi- and monolinguals emerged, with the former providing more “efficient” responses than the latter. Results are discussed regarding the extent to which these results can be characterised as a genuine “bilingual advantage”.