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One study found significant improvements in ADHD-like symptoms, aggression, social problems and thought problems in autistic children who underwent adenotonsillectomy for sleep apnea. [65] Sleep problems in autism have been linked in a study to brain changes, particularly in the hippocampus, though this study does not prove causation. [ 66 ]
One in 100 people (1%) worldwide [9][10] Autism, also called autism spectrum disorder[a] (ASD), is a neurodevelopmental disorder characterized by symptoms of deficient reciprocal social communication and the presence of restricted, repetitive, and inflexible patterns of behavior. Autism generally affects a person's ability to understand and ...
A 2003 review of epidemiological studies of children found autism rates ranging from 0.03 to 4.84 per 1,000, with the ratio of autism to Asperger syndrome ranging from 1.5:1 to 16:1; [145] combining the geometric mean ratio of 5:1 with a conservative prevalence estimate for autism of 1.3 per 1,000 suggests indirectly that the prevalence of AS ...
The heritability of autism is the proportion of differences in expression of autism that can be explained by genetic variation; if the heritability of a condition is high, then the condition is considered to be primarily genetic. Autism has a strong genetic basis. Although the genetics of autism are complex, autism spectrum disorder (ASD) is ...
Classic autism. Classic autism, also known as childhood autism, autistic disorder, (early) infantile autism, infantile psychosis, Kanner's autism, Kanner's syndrome, or (formerly) just autism, is a neurodevelopmental condition first described by Leo Kanner in 1943. It is characterized by atypical and impaired development in social interaction ...
Screening tools designed for one culture's norms for behaviors like eye contact may be inappropriate for a different culture. [33] Although genetic screening for autism is generally still impractical, it can be considered in some cases, such as children with neurological symptoms and dysmorphic features. [34]
History of autism. The history of autism spans over a century; [1] autism has been subject to varying treatments, being pathologized or being viewed as a beneficial part of human neurodiversity. [2] The understanding of autism has been shaped by cultural, scientific, and societal factors, and its perception and treatment change over time as ...
Hyperlexia is a syndrome characterized by a child 's precocious ability to read. It was initially identified by Norman E. Silberberg and Margaret C. Silberberg (1967), who defined it as the precocious ability to read words without prior training in learning to read, typically before the age of five. They indicated that children with hyperlexia ...