Stereotypy is a behavioral condition characterized by either a lack of variation in patterns of thought, motion and speech, by repitition of said patterns, or both. It is often associated with various psychiatric and/or developmental disorders.
Also, unrelated to the psychiatric condition, this is the process of making stereotype plates used for printing.
Stereotypies can be defined as an "involuntary, coordinated, patterned, repetitive, rhythmic, purposeless, but seemingly purposeful or ritualistic, movement or utterance".
Stereotypies can be seen in a variety of medical conditions including autism, mental retardation, Rett's syndrome, restless leg syndrome and akathisia.
Tardive stereotypies are accentuated by distraction such as writing or performing rapid alternating movements and like tics they are suppressible but to a much lesser degree.
Selection experiments in rodents have shown that the propensity of the F2 generation to develop stereotypies is markedly related to the occurrence of stereotypies in their parents [13].
Stereotypy prevalences were lower in Australian Thoroughbred horses kept at pasture compared with stabled horses [12].
It may not be possible to reverse the process of stereotypy development in mature animals but the proportion of time they spend performing the stereotypy can clearly be manipulated by increasing opportunities for social contact [23] and foraging behaviour [32].
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