A key index of top-down control in task switching--preparation for a switch--is underexplored in language switching. The well-documented EEG "signature" of preparation for a task switch--a protracted positive-polarity modulation over the posterior scalp--has thus far not been reported in language switching, and the interpretation of…

Bilinguals sometimes outperform age-matched monolinguals on non-language tasks involving cognitive control. But the bilingual advantage is not consistently found in every experiment and may reflect specific attributes of the bilinguals tested. The goal of this dissertation was to determine if the way in which bilinguals use language, specifically…