Psychiatric and behaviour disturbance in mental handicap.

This study reports on the relationship between behavioural and psychiatric perceptions of mentally handicapped subjects. A Standardised Psychiatric Interview schedule was found to characterise psychiatric problems in the mentally handicapped along eight dimensions: depression, neurasthenia, psychoticism, phobias, histrionic elation, hypochondria, mental retardation and medication effects. A Behavioural Disturbance Scale characterised disturbances along six dimensions: aggressive conduct, mood disturbance, withdrawal, antisocial conduct, idiosyncratic mannerisms and self-injury. The relationships between the two modes of assessment were investigated using multiple regression. Clinical features were not expressed in behaviour disturbances, nor were they related to age, sex or hospitalisation. The communicativeness of an interviewee was, however, found to limit the detection of depression.