Professor Brown’s research broadly deals with how languages interact within the multilingual mind. She is currently focusing on whether and how a fully-developed adult first language system is affected by acquisition of a second language. In addition to traditional analyses of speech production, she conducts analyses of co-speech hand gestures to address this question. Her work is published in journals related to second language acquisition, language and cognition, language and gesture, and language assessment. She is the general advisor in the Interdisciplinary MA Program in Linguistic Studies and concentration advisor for the Language Teaching (TESOL/FLT) concentration. She is the founding co-ordinator of the Certificate of Advanced Studies in Language Teaching: TESOL/TLOTE, and teaches core classes in second language teaching and learning.