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Brain sections and how autism relates to them. Many causes of autism, including environmental and genetic factors, have been recognized or proposed, but understanding of the theory of causation of autism is incomplete. [1] Attempts have been made to incorporate the known genetic and environmental causes into a comprehensive causative framework. [2]
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 and communication ...
t. e. Diagnoses of autism have become more frequent since the 1980s, which has led to various controversies about both the cause of autism and the nature of the diagnoses themselves. Whether autism has mainly a genetic or developmental cause, and the degree of coincidence between autism and intellectual disability, are all matters of current ...
High-functioning autism (HFA) was historically an autism classification to describe a person who exhibited no intellectual disability but otherwise showed autistic traits, such as difficulty in social interaction and communication, as well as repetitive, restricted patterns of behavior. The term is often applied to autistic people who are ...
A new study suggests diagnoses have increased at a faster clip among younger adults over the past decade. Autism spectrum disorder spiked 175% among people in the U.S. from 2.3 per 1,000 in 2011 ...
Autism or autism spectrum disorder[a] (ASD), is a neurodevelopmental disorder characterized by repetitive, restricted, and inflexible patterns of behavior, interests, and activities, as well as persistent deficits in social communication and interaction. Autism generally affects a person's ability to understand and connect with others, as well ...
The mechanisms of autism are the molecular and cellular processes believed to cause or contribute to the symptoms of autism. Multiple processes are hypothesized to explain different autism spectrum features. These hypotheses include defects in synapse structure and function, [1][2] reduced synaptic plasticity, [3] disrupted neural circuit ...
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 ...