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Joseph, Robert M.; Tager-Flusberg, Helen – Journal of Autism and Developmental Disorders, 1997
Longitudinal videotape recordings of six young children with autism and six age- and language-matched children with Down syndrome in structured play with their mothers were analyzed. Findings of reduced expression of positive affect by autistic subjects suggest that their known deficits in attention and affective responsiveness persisted even in…
Descriptors: Attention Control, Autism, Downs Syndrome, Emotional Development