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Sex and gender differences in autism exist regarding prevalence, presentation, and diagnosis.. Men and boys are more frequently diagnosed with autism than women and girls. It is debated whether this is due to a sex difference in rates of autism spectrum disorders (ASD) or whether females are underdiagnosed.
Societal and cultural aspects of autism or sociology of autism [1] come into play with recognition of autism, approaches to its support services and therapies, and how autism affects the definition of personhood. [2] The autistic community is divided primarily into two camps: the autism rights movement and the pathology paradigm.
The amygdala, cerebellum, and many other brain regions have been implicated in autism. [15]Unlike some brain disorders which have clear molecular hallmarks that can be observed in every affected individual, such as Alzheimer's disease or Parkinson's disease, autism does not have a unifying mechanism at the molecular, cellular, or systems level.
Classic autism, also known as childhood autism, autistic disorder, or Kanner's syndrome, is a formerly diagnosed neurodevelopmental disorder first described by Leo Kanner in 1943. It is characterized by atypical and impaired development in social interaction and communication as well as restricted, repetitive behaviors, activities, and interests.
The epidemiology of autism is the study of the incidence and distribution of autism spectrum disorders (ASD). A 2022 systematic review of global prevalence of autism spectrum disorders found a median prevalence of 1% in children in studies published from 2012 to 2021, with a trend of increasing prevalence over time.
Autism Speaks – the world's largest autism advocacy organization that sponsors autism research and conducts awareness and outreach activities aimed at families, governments, and the public; some have argued that it is exploitative and unkind. Gluten-free, casein-free diet – diet that eliminates dietary intake of gluten and casein.
Those who favour the neurodiversity paradigm, which aligns with the social model of disability, see autism as a naturally-occurring variation in the brain. Neurodiversity advocates argue that efforts to eliminate autism should not be compared, for example, to curing cancer, but instead to the antiquated notion of curing left-handedness.
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. The term was often applied to verbal autistic people of at least average intelligence.