My research focuses on the language and reading development of school-age bilingual children in both the societal and the non-societal language (simultaneous/successive bilinguals/child L2 learners & children with English as an additional language), on the role of age of onset, amount/quality of input and crosslinguistic influence in language learning, and on cognitive and brain effects of childhood bilingualism. 

More specifically, my current research adopts an interdisciplinary approach and investigates early childhood bilingualism effects on language, cognition and the brain (behavioural tasks, parental questionnaire, vocabulary assessment, fMRI) and biliteracy effects on executive function in bilingual school-age children (online behavioural tasks, parental questionnaire, vocabulary & reading assessment).

My research has appeared in international peer-reviewed journals such as Second Language Research, Bilingualism: Language & Cognition, Applied Psycholinguistics, F1000 Research, Linguistic Approaches to Bilingualism. 

I am currently Convenor of the Multilingualism Special Interest Group of the British Association of Applied Linguistics (BAAL).

I am also co-founder and director of UCL BiLingo, a bilingualism/multilingualism information and education service. One of our key aims is to bridge the gap between researchers and the wider community by disseminating recent research findings on growing up with two or more languages in childhood.