This article addresses the special challenges associated with collecting longitudinal samples of the spontaneous sign language and spoken language production by young bimodal bilingual children. We discuss the methods used in our study of children in the United States and Brazil. Since one of our goals is to observe both sign language and speech,…

Examines whether early simultaneous bilingual language exposure causes children to be language delayed or confused. Cites research suggesting normal and parallel linguistic development occurs in each language in young children and young children's dual language developments are similar to monolingual language acquisition. Research on simultaneous…

Reports research on the communicative behavior of a hearing child whose parents communicated with him, from birth, in both signs and words. The child's expressive ability accelerated in both modalities and this is possibly attributable to the addition of the signed component. (PJM)

Studies the simultaneous language development in American Sign Language and spoken English by a hearing girl. Findings show: (1) a mixture of oral and manual babbling, (2) a code-switching ability across modalities, and (3) a single syntactic system incorporating rules from both languages but with two separate lexicons. (Author/PJM)

A longitudinal study investigated how a hearing child of deaf parents simultaneously acquired American Sign Language and spoken English. Neither of two unique properties of signed language (personal pronouns or "negative" sign markers) facilitated acquisition of English, suggesting that children's acquisition of grammar is relatively…

Reports on a study which followed the language development of a hearing son of deaf parents from his seventeenth month to twenty-third month. Various aspects of the child's language acquisition in sign and speech are described, as is his early ability to alternate languages (sign and speech) according to addressee. (SED)