In the debate over continuities versus discontinuities in the emergence of language, sign language is not taken to be the antithesis, but is presented as the antecedent of spoken languages. (Author/HP)

This study compared verbal comprehension, verbal production, and gesture production in 40 children (ages 10-49 months) with Down Syndrome (DS) and 40 normally developing children (ages 8-17 months). DS children showed a dissociation between verbal comprehension and production but synchronous development between vocal lexical comprehension and…

A study tested the hypothesis that manual encoding aids learning in the prelingually deaf. Twenty-four adults who used fingerspelling as their primary means of communication participated in two groups of a paired-associate learning paradigm, using eight study-test trial sequences. Those using fingerspelling showed more recall and a faster learning…

This 24-item annotated bibliography is intended to facilitate introduction to the field of sign language studies. It lists selected published works in English in which sign language is viewed from several different aspects, including: theoretical studies (nos. 1, 5, 6, 19, 20 and 21); works relating Sign to other visual communication systems (nos.…

Systematic sampling was done of signing between five home-reared chimpanzees who had had 4-7 years of complete immersion in integrating their signing interaction into their nonverbal communication. Eight-eight percent of all signs reported fell into the social categories of reassurance, social interaction, and play. (SL)

Motivational factors and unique characteristics of sign language systems are suggested as contributing to the ability of severely dysfunctional nonverbal children to make progress within a manual communication medium. (Author/EJS)

A collection of research materials on sign language and primatology is presented here. The essays attempt to show that: sign language is a legitimate language that can be learned not only by humans but by nonhuman primates as well, and nonhuman primates have the capability to acquire a human language using a different mode. The following…

Tracked one prekindergarten teacher's experience to determine whether a relationship exists between student outcomes and a teacher's ability to use sign language. Found enriching preschool curriculum with sign language improves hearing African American children's receptive English vocabulary and confirms research that simultaneously presenting…