Language development is frequently characterized as a process where learning proceeds implicitly, that is, incidentally and in absence of awareness of what was learned. This article reports the results of two experiments that investigated whether second language acquisition can also result in implicit knowledge. Adult learners were trained on an…

Understanding the mechanisms learners use to process target language input is crucial to developing a complete model of both first language (L1) and second language (L2) acquisition. If adult L2 learners are found to process the target language with mechanisms that differ from those used by child L1 learners and adult native speakers, what…

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)

Describes a study done to test the hypothesis that factors that shape children's production of their native language (L1) will also influence adults' pronunciation of sounds in a foreign language (L2). Results confirmed the hypothesis that developmental processes are "reactivated" when adults attempt to produce L2 sounds not found in their L1.…

Using a video sign-monitoring task in American Sign Language, this study investigated the effects of late exposure to a primary language on adult linguistic processing. Native signers were sensitive to errors in both verb agreement and aspect; early and late signers were only sensitive to errors in aspect morphology. Late exposure was found to…