Stereotypy

A stereotypy (/ˈstɛri.əˌtaɪpi, ˈstɪər-, -i.oʊ-/, STERR-ee-ə-ty-pee, STEER-, -⁠ee-oh-) is a repetitive or ritualistic movement, posture, or utterance. Stereotypies may be simple movements such as body rocking, or complex, such as self-caressing, crossing and uncrossing of legs, and marching in place. They are found especially in people with autism spectrum disorders and visually impaired children, and are also found in intellectual disabilities, tardive dyskinesia and stereotypic movement disorder, yet may also be encountered in neurotypical individuals as well. Studies have shown stereotypies associated with some types of schizophrenia. Frontotemporal dementia is also a common neurological cause of repetitive behaviors and stereotypies. Several causes have been hypothesized for stereotypy, and several treatment options are available.

This article is about the human behaviour. For stereotypies in non-human animals, see Stereotypy (non-human).
Not to be confused with Stereotype or Stereotypic movement disorder.

Stereotypy is sometimes called stimming in autism, under the hypothesis that it self-stimulates one or more senses.

Among people with frontotemporal lobar degeneration, more than half (60%) had stereotypies. The time to onset of stereotypies in people with frontotemporal lobar degeneration may be years (average 2.1 years).

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