The study examined the effects of a pre-training general imitation experience on the learning of manual signs by 12 severely mentally retarded children (8-14 years old) and compared the effectiveness of three training methods--imitation, molding, or both. Ss were exposed to a pre-training experience consisting of either free play or general…

Evaluation of a program which taught six severely mentally retarded individuals (ages 8-25) to sign interactively with each other found participants showed increased signing skills in a training play situation, generalized use of these skills in a second play situation, and maintained the trained skills over a 2 to 4 month period. (Author/DB)

This study of four moderately to severely aphasic subjects found that success in manual sign training programs is related to severity of aphasia, that aphasic subjects' propositional use of manual signs rarely follows simple acquisition, and that generalization to untrained stimuli or environments does not occur without additional training.…

Total communication procedures were used with three severely mentally retarded children (mental ages 2 to 4) to examine the effects of receptive speech on the acquisition and maintenance of manual signing. Signs corresponding to known words were generally acquired faster and retained better than signs corresponding to unknown words. (Author/JW)

Twenty-one nonverbal autistic children, 4- to 9-years-old, with language ages of 4- to 24-months, participated in the communication learning program from 1 to 3 years. Simultaneous verbal and manual signs were chosen as the communications mode. The children initially displayed infrequent, unrecognizable vocalizations (Screeches, or vocal…

Four adults with moderate/severe disabilities were taught to request objects by using the manual signs "want" or "please" plus an object label sign, within the context of familiar activities in which needed objects were missing. All participants acquired a generic requesting response, and three acquired an explicit requesting…

Verbal prompts, modeling, physical guidance, positive reinforcement, fading, and chaining procedures were used to teach two nonverbal individuals (one severely and one moderately mentally retarded) an interactive signing dialogue in a naturalistic setting. Although clients learned to use signed communication, extensive training was required and…