Neurological signs and involuntary movements in schizophrenia: intrinsic to and informative on systems pathobiology.

Hdl Handle:
http://hdl.handle.net/10147/207915
Title:
Neurological signs and involuntary movements in schizophrenia: intrinsic to and informative on systems pathobiology.
Authors:
Whitty, Peter F; Owoeye, Olabisi; Waddington, John L
Affiliation:
Department of Psychiatry, The Adelaide and Meath Hospital, Tallaght, Dublin,, Ireland.
Citation:
Schizophr Bull. 2009 Mar;35(2):415-24. Epub 2008 Sep 12.
Journal:
Schizophrenia bulletin
Issue Date:
1-Feb-2012
URI:
http://hdl.handle.net/10147/207915
DOI:
10.1093/schbul/sbn126
PubMed ID:
18791074
Abstract:
While it has long been considered whether the pathobiology of schizophrenia extends beyond its defining symptoms to involve diverse domains of abnormality, in the manner of a systemic disease, studies of neuromotor dysfunction have been confounded by treatment with antipsychotic drugs. This challenge has been illuminated by a new generation of studies on first-episode schizophrenia before initiation of antipsychotic treatment and by opportunities in developing countries to study chronically ill patients who have remained antipsychotic naive due to limitations in provision of psychiatric care. Building from studies in antipsychotic-naive patients, this article reviews 2 domains of neuromotor dysfunction in schizophrenia: neurological signs and involuntary movements. The presence and characteristics of neurological signs in untreated vis-a-vis treated psychosis indicate a vulnerability marker for schizophrenia and implicate disruption to neuronal circuits linking the basal ganglia, cerebral cortex, and cerebellum. The presence and characteristics of involuntary movements in untreated vis-a-vis treated psychosis indicate an intrinsic feature of the disease process and implicate dysfunction in cortical-basal ganglia-cortical circuitry. These neuromotor disorders of schizophrenia join other markers of subtle but pervasive cerebral and extracerebral, systemic dysfunction, and complement current concepts of schizophrenia as a disorder of developmentally determined cortical-basal ganglia-thalamo-cortical/cerebellar network disconnectivity.
Language:
eng
MeSH:
Adult; Antipsychotic Agents/adverse effects; Biological Markers; Brain/*physiopathology; Central Nervous System Diseases/chemically induced/*physiopathology; Cognition Disorders/physiopathology; Dyskinesias/*physiopathology; Humans; Neural Pathways/physiopathology; Schizophrenia/drug therapy/*physiopathology; Schizophrenic Psychology
ISSN:
0586-7614 (Print); 0586-7614 (Linking)

Full metadata record

DC FieldValue Language
dc.contributor.authorWhitty, Peter Fen_GB
dc.contributor.authorOwoeye, Olabisien_GB
dc.contributor.authorWaddington, John Len_GB
dc.date.accessioned2012-02-01T10:49:59Z-
dc.date.available2012-02-01T10:49:59Z-
dc.date.issued2012-02-01T10:49:59Z-
dc.identifier.citationSchizophr Bull. 2009 Mar;35(2):415-24. Epub 2008 Sep 12.en_GB
dc.identifier.issn0586-7614 (Print)en_GB
dc.identifier.issn0586-7614 (Linking)en_GB
dc.identifier.pmid18791074en_GB
dc.identifier.doi10.1093/schbul/sbn126en_GB
dc.identifier.urihttp://hdl.handle.net/10147/207915-
dc.description.abstractWhile it has long been considered whether the pathobiology of schizophrenia extends beyond its defining symptoms to involve diverse domains of abnormality, in the manner of a systemic disease, studies of neuromotor dysfunction have been confounded by treatment with antipsychotic drugs. This challenge has been illuminated by a new generation of studies on first-episode schizophrenia before initiation of antipsychotic treatment and by opportunities in developing countries to study chronically ill patients who have remained antipsychotic naive due to limitations in provision of psychiatric care. Building from studies in antipsychotic-naive patients, this article reviews 2 domains of neuromotor dysfunction in schizophrenia: neurological signs and involuntary movements. The presence and characteristics of neurological signs in untreated vis-a-vis treated psychosis indicate a vulnerability marker for schizophrenia and implicate disruption to neuronal circuits linking the basal ganglia, cerebral cortex, and cerebellum. The presence and characteristics of involuntary movements in untreated vis-a-vis treated psychosis indicate an intrinsic feature of the disease process and implicate dysfunction in cortical-basal ganglia-cortical circuitry. These neuromotor disorders of schizophrenia join other markers of subtle but pervasive cerebral and extracerebral, systemic dysfunction, and complement current concepts of schizophrenia as a disorder of developmentally determined cortical-basal ganglia-thalamo-cortical/cerebellar network disconnectivity.en_GB
dc.language.isoengen_GB
dc.subject.meshAdulten_GB
dc.subject.meshAntipsychotic Agents/adverse effectsen_GB
dc.subject.meshBiological Markersen_GB
dc.subject.meshBrain/*physiopathologyen_GB
dc.subject.meshCentral Nervous System Diseases/chemically induced/*physiopathologyen_GB
dc.subject.meshCognition Disorders/physiopathologyen_GB
dc.subject.meshDyskinesias/*physiopathologyen_GB
dc.subject.meshHumansen_GB
dc.subject.meshNeural Pathways/physiopathologyen_GB
dc.subject.meshSchizophrenia/drug therapy/*physiopathologyen_GB
dc.subject.meshSchizophrenic Psychologyen_GB
dc.titleNeurological signs and involuntary movements in schizophrenia: intrinsic to and informative on systems pathobiology.en_GB
dc.contributor.departmentDepartment of Psychiatry, The Adelaide and Meath Hospital, Tallaght, Dublin,, Ireland.en_GB
dc.identifier.journalSchizophrenia bulletinen_GB
dc.description.provinceLeinster-
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