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... Introduction Autism literally means living in terms of the self. To an observer, a child in a of autism appears to be self-centered since he shows little response to the outside world. However, paradoxically, the child in such a state has little awareness of being a self. In 1960, autism was reported in 4 to 5 cases per 10,000 individuals. The prevalence of cases rose to 5 to 31 cases per 10,000 individuals in 1990 (Iovannone, Dunlap, Huber, & Kincaid, 2003).
Autism and the pervasive developmental disorders (PDDs) are highly complex and variable in their clinical presentation and manifestations. For example, symptoms and characteristics change with developmental maturity and vary with the degree of ...