Reviews methodologies of sign language studies with chimpanzees and compares major findings of those studies with studies of human children. Considers relevance of input conditions for language acquisition, evidence used to demonstrate linguistic achievements, and application of rigorous testing procedures in developmental psycholinguistics.…

Linguistic descriptions of sign languages are important to the recognition of their linguistic status. These languages are an essential part of the cultural heritage of the communities that create and use them and vital in the education of deaf children. They are also the reference point in language acquisition studies. Ours is exploratory…

Four keynote papers, presented at an international conference on sign language research, discussed general linguistic issues of sign language, psycholinguistics, sociolinguistics, and language acquisition. (CB)

Compares the effectiveness of a visual only approach (mouthing and signing) with a simultaneous visual and auditory approach (signing and speaking) in teaching autistic-like children to communicate. Results suggest the simultaneous approach may be superior. In addition, receptive abilities precede expressive. Implications of therapeutic…

Psycholinguistic and neurological examination of the use of duality of patterning as a primary criterion for determining if a system is a (signed or spoken) language revealed the existence of duality in processes that facilitate language acquisition. (27 references) (Author/CB)

For the two children studied and in the situations observed and recorded, important conditions for the emergence of language in the ontogeny of communication appear to be: (1) interaction with caretaking adults, (2) shared focal attention, and (3) specificity of reference. (Author)

Explores the operational and conceptual meanings of the iconicity of manual signs and sign languages. Empirical studies related to the operational definition of iconicity in American Sign Language are described, and implications of parallels between iconicity and "stimulus meaningfulness" are discussed in relation to the scientific…

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…

Reports on an experiment describing the lexical development of a hearing child with a deaf mother and hearing father. Data confirm previous findings that (1) sign emerges before spoken word, (2) acquisition stages are similar in ASL and spoken English, and (3) the child initially develops one lexical system. (Author/AM)

Compares the production of speech and sign: the approaches used in research, the cognitive processes involved, and the output timing mechanism. (AM)

The results of a word recognition study are compared to those of a sign recognition study in order to determine which aspects of lexical access are comparable in speech and sign, and which are specific to each of the two language modalities. The "gating paradigm" was used in both studies. (Author/AMH)