How do the two languages of bilingual children or adults interact with each other, and what effect does this have on their language production and processing? What does it mean to learn and process a second language? These are central questions in the field of bilingualism and second language acquisition addressed by CLS researchers. Their research focuses on second language acquisition in children as well as in adults, and aims to determine which factors influence second language learning and what it means to be bilingual. Dr. Sharon Unsworth, “By comparing learning processes of children who learn a second language at school with those of children who are raised bilingually at home, we can determine which environmental and individual factors contribute to developing language proficiency.”