Cause of autism pdf files

Learn more about autism spectrum disorders, symptoms, causes, diagnosis, and treatment. Documented causes of autism include genetic mutations andor deletions, viral infections, and encephalitis following vaccination. Autism spectrum disorders asds are a group of developmental disabilities that can cause significant social, communication and behavioral. Therefore, autism is the result of genetic defects andor inflammation of the brain.

This is due to the conditions heterogeneity and to the fact that a diagnosis of autism spectrum disorders asd is based on descriptions and observations. Theres no single cause for it, and symptoms can be very mild or very severe. Today, genetic research is delving into the biological causes of autism associated health conditions. A historical perspective on autism encyclopedia on early. Autism could result from more than one cause, with different manifestations in different individuals that share common symptoms. See actions taken by the people who manage and post content.

Documented causes of autism include genetic mutations andor deletions, viral infections, and. Autism a historical perspective on autism adam feinstein autism cymru and looking up, united kingdom july 2012 introduction the history of autism is plagued by misconceptions and distortions. Landrigan introduction autism is a complex, serious, biologically based disorder of brain development. Rather, it relates to many of the medical and mental health conditions in this report most of which are treatable andor preventable. Autism spectrum disorder asd is typically diagnosed on the basis of behavioral. Pdf autism, a member of the pervasive developmental disorders pdds, has been. These diagnoses mean that the person does not fulfil all the criteria for autism or aspergers syndrome, but nonetheless has serious difficulties of a similar nature. Autism is a complicated condition that includes problems in social, language, and communication skills. Facebook is showing information to help you better understand the purpose of a page. The majority of children with autism also have a learning disability mental retardation, although a few have.