Search results
Results From The WOW.Com Content Network
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 ...
History of Asperger syndrome. Asperger syndrome (AS) was formerly a separate diagnosis under autism spectrum disorder. Under the DSM-5 and ICD-11, patients formerly diagnosable with Asperger syndrome are diagnosable with Autism Spectrum Disorder. The term is considered offensive by some autistic individuals. [ 1]
One in 100 people (1%) worldwide [ 9] Autism, also called autism spectrum disorder[ a] ( ASD) or autism spectrum condition ( ASC ), [ 10] is a neurodevelopmental disorder characterized by symptoms of deficient reciprocal social communication and the presence of restricted, repetitive, and inflexible patterns of behavior that are impairing in ...
High-functioning autism is characterized by features similar to those of Asperger syndrome. The defining characteristic recognized by psychologists is a significant delay in the development of early speech and language skills, before the age of three years. [ 12] The diagnostic criteria of Asperger syndrome exclude a general language delay.
The Autism Diagnostic Observation Schedule ( ADOS) is a standardized diagnostic test for assessing autism spectrum disorder. The protocol consists of a series of structured and semi-structured tasks that involve social interaction between the examiner and the person under assessment. The examiner observes and identifies aspects of the subject's ...
No gesturing (pointing, waving, etc.) by 12 months. No single words by 16 months. No two-word (spontaneous, not just echolalic) phrases by 24 months. Loss of any language or social skills, at any age. The Japanese practice is to screen all children for ASD at 18 and 24 months, using autism-specific formal screening tests. In contrast, in the UK ...
There are many known environmental, genetic, and biological causes of autism. Research indicates that genetic factors are predominant in the appearance of autism; however, the heritability of autism is complex, and many of the genetic interactions involved are unknown. [ 1] In rare cases, autism has been associated with agents that cause birth ...
The pathophysiology of autism is the study of the physiological processes that cause or are otherwise associated with autism spectrum disorders . Autism's symptoms result from maturation-related changes in various systems of the brain. [1] How autism occurs is not yet well understood. Its mechanism can be divided into two areas: the ...