Journal
SOMATOSENSORY AND MOTOR RESEARCH
Volume 32, Issue 2, Pages 77-86Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/08990220.2014.969838
Keywords
Markerless motion analysis; motor abnormalities; motor immaturity; neurological soft signs; schizophrenia
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Funding
- FEDER via Programa Operacional Factores de Competitividade-COMPETE
- Fundacao para a Ciencia e a Tecnologia [FCOMP-01-0124-FEDER-022714]
- Bolsas de Investigacao Cientifica e Desenvolvimento-Institut Politecnico do Porto/Banco Santander Project [BInt-ICD/IPP-BST/LABRP/01/2013]
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Motor dysfunction is consistently reported but understudied in schizophrenia. It has been hypothesized that this abnormality may reflect a neuro-developmental disorder underlying this illness. The main goal of this study was to analyze movement patterns used by participants with schizophrenia and healthy controls during overarm throwing performance, using a markerless motion capture system. Thirteen schizophrenia patients and 16 healthy control patients performed the overarm throwing task in a markerless motion capture system. Participants were also examined for the presence of motor neurological soft signs (mNSS) using the Brief Motor Scale. Schizophrenia patients demonstrated a less developed movement pattern with low individualization of components compared to healthy controls. The schizophrenia group also displayed a higher incidence of mNSS. The presence of a less mature movement pattern can be an indicator of neuro-immaturity and a marker for atypical neurological development in schizophrenia. Our findings support the understanding of motor dysfunction as an intrinsic part of the disorder of schizophrenia.
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