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Stereotypy in monkeys and humans

Published online by Cambridge University Press:  09 July 2009

Rosalind M. Ridley  and
Harry F. Baker
Rosalind M. Ridley*
Affiliation:
Division of Psychiatry, Clinical Research Centre, Harrow, Middlesex
Harry F. Baker
Affiliation:
Division of Psychiatry, Clinical Research Centre, Harrow, Middlesex
*
1Address for correspondence: Dr Rosalind M. Ridley, Division of Psychiatry, Clinical Research Centre, Watford Road, Harrow, Middlesex HA1 3UJ.
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Synopsis

Stereotyped movements are described in monkeys and humans and are classified as arising from constraint, sensory deprivation in infancy, amphetamine treatment or psychotic states. It is argued that, with the exception of cage stereotypies, stereotyped behaviour is evidence of abnormality in the nervous system consequent upon distorted maturational processes, organic defect or biochemical disturbance. Stereotypy is associated with a state of cognitive inflexibility and social and sensory isolation in humans and monkeys. It is suggested that, while no simple biochemical disturbance in the brain can describe these various occurrences of stereotypy, the cross-species occurrence of a syndrome of isolation, cognitive inflexibility and stereotypy implies a related mechanism mediating these divergent effects. If stereotypy is regarded as a consequence of failure to use sensory input to direct behaviour, therapeutic regimes designed to stimulate responsive behaviours and social interactions are more likely to be effective in the long run than direct attempts to suppress stereotypy.

Type
Research Article
Information
Psychological Medicine , Volume 12 , Issue 1 , February 1982 , pp. 61 - 72
Copyright
Copyright © Cambridge University Press 1982

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References

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