This paper sets out to peruse the role of various theories or more precisely, hypotheses invoked in second language acquisition (SLA) research by surveying three empirical studies pertaining to the critical period hypothesis in the SLA of phonetics and phonology. In particular, the three studies reviewed are titled in chronological order as (1)…

A recent wave of linguistic research has attempted to demonstrate empirically that in learning the syntax of a second language, adults re-access their universal grammar (UG). However, the conspicuous lack of success of second language learners has caused researchers to seek evidence in experimental data. The most expedient source of this data is…

Describes the "Competition Model" (Bates and MacWhinney, 1982) dealing with second-language sentence processing by bilinguals and research that has further developed theories dealing with the model. (CB)