He specializes in second language acquisition, which he investigates on both theoretical and practical levels, using techniques from psycholinguistics, applied linguistics, and cognitive psychology.
en.wikipedia.org These observations have led some to hypothesise a critical period for certain areas of human learning, particularly language acquisition.
en.wikipedia.org It contains sample databases from within several subfields of communication, including first language acquisition, second language acquisition, conversation analysis, classroom discourse, and aphasic language.
en.wikipedia.org It is also employed in language acquisition in arguments within linguistics.
en.wikipedia.org He is a well-known researcher specializing in language acquisition, focusing specifically on syntax and semantics.
en.wikipedia.org