Her research focuses on the areas of bilingualism, multilingualism and the effects of aging on language learning. She is currently involved in several collaborative projects with researchers in China and Europe investigating morphosyntax processing and visual word processing in language combinations including English, Spanish and Chinese. She uses both off-line behavioural measures such as accuracy and reaction times and on-line neuroimaging techniques such as Event-Related Potentials (ERPs) to record and analyze the brain electrical activity of monolinguals and early and late bilinguals while they read or listen to sentences and words.