NEUROBIOLOGICAL MECHANISMS OF LANGUAGE-ACQUISITION

In this paper we specify language acquisition processes in terms of brain mechanisms in order to explain the variable success achieved by early and late language learners. On the basis of the literature in language acquisition, neurobiology, and linguistics, we propose a brain-based model for language acquisition. The model assumes two conditions must be met in order to acquire full knowledge of a particular language: first, that the learner is motivated to acquire the language; and second, that the learner is equipped with the ability to acquire grammatical knowledge. We explain the neural underpinnings for both motivation and grammatical ability and show how they interact to produce variable success in language acquisition.