CAUSES OF AUTISM

There is no known single cause for autism, but it is generally accepted that it is caused by abnormalities in brain structure or function. Brain scans show differences in the shape and structure of the brain in autistic versus non-autistic children. Researchers are investigating a number of theories, including the link between heredity, genetics and medical problems. In many families, there appears to be a pattern of autism or related disabilities, further supporting a genetic basis to the disorder. While no one gene has been identified as causing autism, researchers are searching for irregular segments of genetic code that autistic children may have inherited. It also appears that some children are born with a susceptibility to autism, but researchers have not yet identified a single "trigger" that causes autism to develop.

Other researchers are investigating the possibility that under certain conditions, a cluster of unstable genes may interfere with brain development resulting in autism. Still other researchers are investigating problems during pregnancy or delivery as well as environmental factors such as viral infections, metabolic imbalances, and exposure to environmental chemicals.

Autism tends to occur more frequently than expected among individuals who have certain medical conditions, including Fragile X syndrome, tuberous sclerosis, congenital rubella syndrome, and untreated phenylketonuria (PKU).

CHILDHOOD DEVELOPMENT WITH AUTISM

Children with autism develop skills differently from other children. Children without autism develop motor, language, cognitive and social skills at about the same rate. Children with autism might have large delays in language, social, and cognitive skills, while their motor skills might be about the same as other children their age. They might be very good at things like putting puzzles together or solving computer problems, but not very good at some things most people think are easy, like talking or making friends.

Children with autism might also learn a hard skill before they learn an easy one. For example, a child might be able to read long words, but not be able to tell you what sound a "b" makes. A child might also learn a skill and then lose it. For example, a child may be able to say many words, but later stop talking altogether.

AUTISM TREATMENT & THERAPY

All available research strongly suggests that intensive early intervention makes a critical difference to children with autistic spectrum disorders. Without early identification and diagnosis, children with autism are unlikely to learn the skills they need to benefit from education.

Many treatment approaches have been developed to address the range of social, language, sensory, and behavioral difficulties. These include Applied Behavioral Analysis (ABA); Discrete Trial Training (discrete trials); TEACCH; PECS; Floor Time; and Social Stories, and sensory integration.

COSTS

An example of treatment for autism is at Brookfield Programs in High Park, Toronto, ON, where the cost is approximately $100 per hour of treatment.