A review of research and theory on the structure of signed and spoken languages explores the relationship between the two language types and how the study of signed languages can inform researchers about the human capacity for language. (29 references) (CB)

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)

Outlines phonological structure and processes of American Sign Language (ASL), covering: (1) sequential phenomena found in the production of individual signs; (2) the segmental phonetic transcription system; (3) paradigmatic and syntagmatic contrasts in ASL signs; (4) similarities between ASL and spoken language phonological processes; and (5)…

Human languages can incorporate signs without obvious physical relationship to their referents. The nature of the relationship between sign (i.e., word or sign) and referent in signed and spoken languages is discussed from cognitive and historical research perspectives, and observations are given on the biological bases of this phenomenon.…