Neurobehavioural correlates of abnormal repetitive behaviour.
Conditions in which echolalia and echopraxia occur are reviewed, followed by an attempt to elicit possible mechanisms of these phenomena. A brief description of stereotypical and perseverative behaviour and obsessional phenomena is given. It is suggested that abnormal repetitive behaviour may occur partly as a result of central dopaminergic dysfunction.
Springfield Hospital Glenburnie Road, London SW17, UK.
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Ford