A model is proposed to explain when communication in the manual modality will assume grammatical properties and when it will not. An experiment with 16 hearing adults suggests the necessity of segmentation and combination in all communication. Manual communication need not be characterized by grammatical properties only when it accompanies speech.…

Sign languages modulate the production of signs in space and use this spatial modulation to refer back to entities--to maintain coreference. We ask here whether spatial modulation is so fundamental to language in the manual modality that it will be invented by individuals asked to create gestures on the spot. English speakers were asked to…

Spontaneous gestures of a deaf child unexposed to sign language were studied to determine whether regularities existing within gestures were akin to morphological structure. The child's gestures, handshape/motion combinations forming a matrix for communication, suggest that structural regularity at the intraword level is a resilient property of…

Deaf children unable to acquire oral language naturally and who are not exposed to a standard manual language can spontaneously develop a structured sign system that has many of the properties of natural spoken language. This communication system appears to be largely the invention of the child himself. (Authors/BT)

This paper reviews research findings on the structural properties of deaf childrens' gestural communication systems and evaluates those properties in the context of data gained from other approaches to the question of the young child's language-making capacity. (over 100 references) (JL)