6 avril 2021
https://creativecommons.org/licenses/by/4.0/ , info:eu-repo/semantics/openAccess
John D. Bonvillian et al., « 4. Sign Communication in Persons with an Intellectual Disability or with Cerebral Palsy », Open Book Publishers, ID : 10670/1.m34nfm
The 1970s brought a dramatic increase in the use of signs to foster language skills in non-speaking children and adults. When the decade began, there were only a few programs that utilized signs with hearing, but non-speaking, persons. By the time that Goodman, Wilson, and Bornstein (1978) conducted their national survey later that decade, however, there were over 10,000 students in North America alone who were participating in sign-communication training and teaching programs. Many of these ...