Examination of the spoken English development of a hearing child whose deaf parents used American Sign Language (ASL) identified a consistent but not extensive ASL influence on simultaneity of expression, undifferentiated versus differentiated features, bound versus free morpheme mechanisms, and word order. (47 references) (Author/CB)

Examined longitudinally the handshape aspect of American Sign Language signs in young children of deaf parents. Parents demonstrated on videotape how the children formed the different signs. Findings reveal that four basic handshapes predominated in early sign production, and that the part of the hand involved in contacting a sign's location often…

Examines the effect of adult recasting in sign language on the acquisition of specific syntactic-semantic structures by deaf children aged 9 to 76 months. Results indicated that recasting triggered the acquisition of new syntactic-semantic structures in American Sign Language and English, evident in the spontaneous production of previously…

Focuses on the acquisition of negation in American Sign Language (ASL) and the developmental relationship between the communicative and grammatical (or linguistic) headshakes for negation in deaf children acquiring ASL. Results indicate that the systems for communication and language are differentially mediated. (35 references) (Author/CK)

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…