Autism overview: Difference between revisions
(Created page with "__NOTOC__ {{Autism}} {{CMG}} ==Overview== '''Autism''' is a brain development disorder that impairs social interaction and communication, and...") |
No edit summary |
||
| Line 4: | Line 4: | ||
==Overview== | ==Overview== | ||
'''Autism''' is a [[Neurodevelopmental disorders|brain development disorder]] that impairs social interaction and communication, and causes restricted and repetitive behavior, all starting before a child is three years old. This set of signs distinguishes autism from milder '''autism spectrum disorders''' (ASD) such as [[Asperger syndrome]]. | '''Autism''' is a [[Neurodevelopmental disorders|brain development disorder]] that impairs social interaction and communication, and causes restricted and repetitive behavior, all starting before a child is three years old. This set of signs distinguishes autism from milder '''autism spectrum disorders''' (ASD) such as [[Asperger syndrome]]. | ||
Autism has a strong genetic basis, although the [[Heritability of autism|genetics of autism]] are complex and it is unclear whether ASD is explained more by multigene interactions or by rare [[mutation]]s. In rare cases, autism is strongly associated with [[Teratology|agents that cause birth defects]].Other proposed [[Causes of autism|causes]], such as childhood [[vaccine]]s, are [[Controversies in autism|controversial]] and the vaccine hypotheses lack convincing scientific evidence. Most recent reviews estimate a [[prevalence]] of one to two cases per 1,000 people for autism, and about six per 1,000 for ASD, with ASD averaging a 4.3:1 male-to-female ratio. The number of people known to have autism has increased dramatically since the 1980s, at least partly due to changes in diagnostic practice; the question of whether actual prevalence has increased is unresolved. | |||
Autism has a strong genetic basis, although the [[Heritability of autism|genetics of autism]] are complex and it is unclear whether ASD is explained more by multigene interactions or by rare [[mutation]]s. | Autism affects many parts of the [[Human brain|brain]]; how this occurs is poorly understood. Parents usually notice signs in the first two years of their child's life. Early behavioral or cognitive intervention can help children gain self-care, social, and communication skills. There is no cure. Few children with autism live independently after reaching adulthood, but some become successful, and an [[Sociological and cultural aspects of autism|autistic culture]] has developed, with some seeking a cure and others believing that autism is a condition rather than a disorder. | ||
Autism affects many parts of the [[Human brain|brain]]; how this occurs is poorly understood. Parents usually notice signs in the first two years of their child's life. Early behavioral or cognitive intervention can help children gain self-care, social, and communication skills. There is no cure. | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
Revision as of 15:21, 29 August 2012
|
Autism Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Case Studies |
|
Autism overview On the Web |
|
American Roentgen Ray Society Images of Autism overview |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Autism is a brain development disorder that impairs social interaction and communication, and causes restricted and repetitive behavior, all starting before a child is three years old. This set of signs distinguishes autism from milder autism spectrum disorders (ASD) such as Asperger syndrome. 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 convincing scientific evidence. Most recent reviews estimate a prevalence of one to two cases per 1,000 people for autism, and about six per 1,000 for ASD, with ASD averaging a 4.3:1 male-to-female ratio. The number of people known to have autism has increased dramatically since the 1980s, at least partly due to changes in diagnostic practice; the question of whether actual prevalence has increased is unresolved. Autism affects many parts of the brain; how this occurs is poorly understood. Parents usually notice signs in the first two years of their child's life. Early behavioral or cognitive intervention can help children gain self-care, social, and communication skills. There is no 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 is a condition rather than a disorder.