These proceedings are a collection of papers by researchers in neurology, bilingualism, linguistics, and the neurolinguistics of bilingualism. Topics are addressed using neurolinguistic data for second language learning, learning models for second language acquisition, and implications for teaching and research. Summaries of the following papers are included: (1) "Lateralization in Bilinguals," by L. Obler; (2) "Polyglot Aphasia," by M. Paradis; (3) "Second Language Acquisition Theory," by S. Krashen; (4) "Neurofunctional Issues in Bilingualism," by H. A. Whitaker; (5) "Neurolinguistic Explanations of the Differences between Language Teaching Methods," by K. Diller; and (6) "Generation of New Ideas for Teaching and Research," by C. B. Paulston. The papers have prepared commentaries by the following: H. Goodglass, J. B. Gleason, V. Fromkin, and A. D. Cohen. A general discussion of the papers concludes the volume. (AMH)