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…

Two mentally retarded boys with autism and one girl with Down syndrome were successfully taught to initiate and play a ball game with an adult. The program targeted both nonverbal responses (such as ball contact and cooperative play) and verbal responses for play initiation and compliment delivery. (Author/JDD)

Stories were read daily at school and home to 32 children, aged 3-10, with severe learning difficulties. After eight months, almost all of the children showed improvements in verbal comprehension greater than gains of a comparison group, and the older children showed improvements in verbal expression. (Author/JDD)