Society, and Society for Research in Child Development. MacWhinney is married and has two sons. He is fluent in six languages, including English, Hungarian, German, French, Spanish, and Italian, and has presented his research in many countries around the world. Competition model MacWhinney has developed a model of first and second language acquisition as well as language processing called the competition model. This model views language acquisition as an emergentist phenomenon that results from competition between lexical items, phonological forms, and syntactic patterns, accounting for language processing on the synchronic, ontogenetic, and phylogenetic time scales. Empirical studies based on the competition model have shown that learning of language forms is based on the accurate recording of many exposures to words and patterns in different contexts. The predictions of the competition model have been supported by research in the realms of psycholinguistics, cognitive neuroscience, and cognitive development. CHILDES & TalkBank Projects MacWhinney developed and directs the CHILDES and TalkBank corpora, two widely used databases for language acquisition research. He manages FluencyBank, a TalkBank project, together with Nan Bernstein Ratner. The CHILDES system provides tools for studying conversational interactions. These tools include a database of transcripts, programs for computer analysis of transcripts, methods for linguistic coding, and systems for linking transcripts to digitized audio and video. The CHILDES database includes a rich variety of computerized transcripts from language learners. Most of these transcripts record spontaneous conversational interactions. There are also transcripts from bilingual children, older school-aged children, adult second-language learners, children with various types of language disabilities, and aphasics who are trying to recover from language loss. The transcripts include data on the learning of 26 different languages. TalkBank contains CHILDES as well as additional linguistic data from older children and adults, including people with aphasia, second language learners, adult conversation, and classroom language learning data. Support for the construction and maintenance of the databases comes from the National Institute of Child Health and Human Development (NIH-NICHD) and the National Science Foundation Linguistics Program. Linguistic Functionalism Recently, MacWhinney's work has focused on aspects of second language learning and the neural bases of language as revealed by the development of children with focal brain lesions. He has begun to explore a new form of linguistic functionalism, which relates the communicative functions postulated by the competition model to the process of perspective-taking. This process allows the human mind to construct an ongoing cognitive simulation