Vulnerability to involuntary movements over a lifetime trajectory of schizophrenia approaches 100%, in association with executive (frontal) dysfunction

Schizophrenia Research
J QuinnJ L Waddington

Abstract

This study assessed the prevalence of involuntary movements among older inpatients with severe schizophrenia, many of whom had experienced a lifetime of illness and its treatment, and examined their neuropsychological correlates. The subjects of this study were 128 inpatients with a DSM-IV diagnosis of schizophrenia. They were assessed using the Abnormal Involuntary Movement Scale, the Mini-Mental State Examination for general cognitive impairment and the Executive Interview for executive dyscontrol; additionally, their medical records were reviewed in detail for treatment histories. Prevalence of involuntary movements was examined and their clinical correlates determined in relation to topography of movement disorder using logistic regression. In schizophrenia, prevalence of involuntary movements was: age <65years, 63%; 65-75years, 80%; >75years, 93%. The primary correlate both of overall and of orofacial movements was poor executive function, whereas the primary correlate of limb-trunkal movements was poor general cognitive function. On approaching the limits of human longevity following a lifetime trajectory of illness and its treatment, essentially 'all' patients with schizophrenia appear inherently vulnerable to the emerge...Continue Reading

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Jul 2, 2003·Psychosomatics·Jason E SchillerstromDonald R Royall
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Jan 26, 2021·Frontiers in Psychology·Anastasia Pavlidou, Sebastian Walther
Jun 12, 2021·Der Nervenarzt·Dusan HirjakRobert Christian Wolf

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