Theory Of Autism

Autism, also known as autism spectrum disorder (ASD), is five complex brain disorders that affects a person's behavior, communication, and social skills. Autism is caused from very early brain development. The most obvious stages of autism come anywhere between age two and three, and lasts throughout their whole life. The Centers for Disease Control said that ASDs were, "Developmental disabilities that cause substantial impairments in social interaction and communication and the presence of unusual behaviors and interests. Many people with ASDs also have unusual ways of learning, paying attention, and reacting to different sensations. The thinking and learning abilities of ASDs can vary—from gifted to severely challenged." Before they
Researchers do not know what causes autism, but they are investigating many different theories. They are searching for links among their genetic, heredity, and medical problems. Autism is generally accepted that it is caused by abnormalities in brain structure or function. A child’s brain with autism has a different shape and structure compared to normal children. In most families that have autism, there is a pattern of autism or related disabilities. This supports the theory that the disorder has a genetic basis. No gene has been identified in causing autism, researchers are searching for unbalanced segments of genetic code that children with autism may have inherited. Researchers have not yet identified a single trigger that causes autism to develop, but some children are born with a susceptibility to autism spectrum disorder. Some researchers are doing an investigation that a cluster of unstable genes may interfere with development of the brain, which would result in autism. Other researchers are doing an investigation to see if autism comes from problems during pregnancy or delivery. Viral infections, metabolic imbalances, and exposure to chemicals can also cause