This study examined keyword signing (KWS), a communication approach used with nonspeaking individuals. Acoustic measures and judgments of 20 adult listeners were used to evaluate KWS and Spoken-Only narratives. KWS narratives were produced with a slower articulation rate, because of increased pause and speech segment duration and increased pause…

This bibliographic review aims to present a single comprehensive source of references to facilitate clinical application of data obtained on the vocal activity of normal infants and to facilitate continued research on prelinguistic vocal output. The bibliography cites the published observational, empirical, and theoretical reports that examine the…

This study of the forms and functions of expressive communication produced by 84 children and adults with severe mental retardation found significant differences among participants associated with differences in their communication levels (contact gesture, distal gesture, or symbolic), age (child or adult), and residential status (community home…

The study assessed the use of Blissymbols in the spoken and signed language development of 10 school-aged (mean age 11.5 years) children with developmental dysphasia of whom four also were mildly retarded. The students' expressive abilities in signed and spoken words were initially assessed before the Bliss teaching began, and then again after 1…

This longitudinal case study follows the development of a woman with autism from mutism at age 10 to acquisition of a range of spoken and written language skills by age 26. Results support hypotheses that both spoken and written language may become feasible forms of communication in such cases, although some skills may plateau or decline.…

Ten head-injured adults were compared to normal adults on a narrative picture description task. Subjects were similar in amount of pertinent content expressed, narrative length, and rate of speech, but were significantly slower in rate of information imparted as they required lengthier and slower verbal outputs to convey essential information.…

A 6-year-old child's oral and spelled utterances were compared over a 3-month period as he was trained to use facilitated communication (FC). The child's language with FC was significantly better than his oral language. Evidence that he was authoring his own messages included his eventual ability to type messages without physical support.…