Autism is a brain development disorder characterized by impaired social interaction and communica... more Autism is a brain development disorder characterized by impaired social interaction and communication, and by restricted and repetitive behavior. These signs all begin before a child is three years old. The autism spectrum disorders (ASD) also include related conditions with milder signs and symptoms. Autism has a strong genetic basis, although the genetics of autism are complex and it is unclear whether ASD is explained more by multigene interactions or by rare mutations. In rare cases, autism is strongly associated with agents that cause birth defects. Other proposed causes, such as childhood vaccines, are controversial, and the vaccine hypotheses lack any convincing scientific evidence. Autism affects many parts of the brain; how this occurs is not understood. Parents usually notice signs in the first two years of their child's life. Although early behavioral or cognitive intervention can help children gain self-care, social, and communication skills, there is no known cure. Few children with autism live independently after reaching adulthood, but some become successful, and an autistic culture has developed, with some seeking a cure and others believing that autism are a condition rather than a disorder. "Autism is a severely incapacitating lifelong developmental disability which usually appears during the first three years of life." _ National Society for Autistic Children "Autism is a pervasive developmental disorder and is challenged by range of impairments in the normal development of communication." Cohen and Donnellan (1987)
Autism is a brain development disorder characterized by impaired social interaction and communica... more Autism is a brain development disorder characterized by impaired social interaction and communication, and by restricted and repetitive behavior. These signs all begin before a child is three years old. The autism spectrum disorders (ASD) also include related conditions with milder signs and symptoms. Autism has a strong genetic basis, although the genetics of autism are complex and it is unclear whether ASD is explained more by multigene interactions or by rare mutations. In rare cases, autism is strongly associated with agents that cause birth defects. Other proposed causes, such as childhood vaccines, are controversial, and the vaccine hypotheses lack any convincing scientific evidence. Autism affects many parts of the brain; how this occurs is not understood. Parents usually notice signs in the first two years of their child's life. Although early behavioral or cognitive intervention can help children gain self-care, social, and communication skills, there is no known cure. Few children with autism live independently after reaching adulthood, but some become successful, and an autistic culture has developed, with some seeking a cure and others believing that autism are a condition rather than a disorder. "Autism is a severely incapacitating lifelong developmental disability which usually appears during the first three years of life." _ National Society for Autistic Children "Autism is a pervasive developmental disorder and is challenged by range of impairments in the normal development of communication." Cohen and Donnellan (1987)
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