Observation of child language development is just one way to study how language changes over time. Developmental psycholinguistics shares much common ground with historical linguistics and with studies of languages in contact and the evolution of pidgins and creoles. By studying the way language changes, this paper focuses on clarifying the…

While agreeing with psycholinguistic and neurolinguistic theories that suggest that innate language-related cognitive structures are the basis of language development, the author seeks to establish what it is that is innate and what is meant by innateness in the first place. The author considers the claims of psychological relevance made on behalf…