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Young autistic boy stimming with cold water in the kitchen sink. Stimming behavior is almost always present in autistic people, but does not, on its own, necessarily indicate the diagnosis. [9] [23] The biggest difference between autistic and non-autistic stimming is the type of stim and the quantity of stimming. [23]
More specifically, prevalence estimates of catatonia among people with neurodevelopmental disorders (of which autism is one) have ranged from 6-20.2%, with the mean estimate falling at 9%; [1] similarly, in a recent meta-analysis of 12 studies of autistic catatonia, Vaquerizo-Serrano et al. suggest that catatonia is found in 10.4% of autistic ...
Engaging in special interests can bring autistic people great joy [25] [26] and many autistic people spend large amounts of time engaged in their special interest. [27] In adults, engaging with special interests has been shown to have positive outcomes for mental health, [28] self-esteem, [29] and can be used to manage stress.
Autistic meltdown describes an intense, often uncontrollable response to an overwhelming situation experienced by some autistic individuals. Angry outbursts in autistic people have been referred to as meltdowns that manifest as an intense reaction, [ 1 ] but such outbursts are different to true meltdowns, which always take some time to recover ...
Autistic people struggle to understand the social context and subtext of neurotypical conversational or printed situations, and form different conclusions about the content. [111] Autistic people may not control the volume of their voice in different social settings. [112] At least half of autistic children have atypical prosody. [112]
People with autism experience auditory hypersensitivity which can lead to sensory overload. [23] Although people with autism do not have abnormalities in P50 sensory gating, they have anomalies in sensory gating related to the N100 test which indicates an irregularity in attention-related direction and top-down mental pathways. [23]
Autistic people appear to have a local bias for visual information processing, that is, a preference for processing local features (details, parts) rather than global features (the whole). [33] One explanation for this local bias is that people with autism do not have the normal global precedence when looking at objects and scenes ...
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.