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Attention to Automatic Movements in Parkinson's Disease: Modified Automatic Mode in the Striatum.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wu, Tao Liu, Jun Zhang, Hejia Hallett, Mark Zheng, Zheng Chan, Piu
Description	Author Affiliation: Wu T ( Department of Neurobiology, Key Laboratory on Neurodegenerative Disorders of Ministry of Education, Beijing Institute of Geriatrics, Xuanwu Hospital, Capital Medical University, Beijing, China Beijing Key Laboratory on Parkinson's Disease, Parkinson Disease Center of Beijing Institute for Brain Diso); Liu J ( Department of Radiology, Nankai University Affiliated Hospital, Tianjin, China.); Zhang H ( Electrical and Computer Engineering Department, Rice University, Houston, TX, USA.); Hallett M ( Human Motor Control Section, Medical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.); Zheng Z ( Department of Neurobiology, Key Laboratory on Neurodegenerative Disorders of Ministry of Education, Beijing Institute of Geriatrics, Xuanwu Hospital, Capital Medical University, Beijing, China Beijing Key Laboratory on Parkinson's Disease, Parkinson Disease Center of Beijing Institute for Brain Diso); Chan P ( Department of Neurobiology, Key Laboratory on Neurodegenerative Disorders of Ministry of Education, Beijing Institute of Geriatrics, Xuanwu Hospital, Capital Medical University, Beijing, China Beijing Key Laboratory on Parkinson's Disease, Parkinson Disease Center of Beijing Institute for Brain Diso)
Abstract	We investigated neural correlates when attending to a movement that could be made automatically in healthy subjects and Parkinson's disease (PD) patients. Subjects practiced a visuomotor association task until they could perform it automatically, and then directed their attention back to the automated task. Functional MRI was obtained during the early-learning, automatic stage, and when re-attending. In controls, attention to automatic movement induced more activation in the dorsolateral prefrontal cortex (DLPFC), anterior cingulate cortex, and rostral supplementary motor area. The motor cortex received more influence from the cortical motor association regions. In contrast, the pattern of the activity and connectivity of the striatum remained at the level of the automatic stage. In PD patients, attention enhanced activity in the DLPFC, premotor cortex, and cerebellum, but the connectivity from the putamen to the motor cortex decreased. Our findings demonstrate that, in controls, when a movement achieves the automatic stage, attention can influence the attentional networks and cortical motor association areas, but has no apparent effect on the striatum. In PD patients, attention induces a shift from the automatic mode back to the controlled pattern within the striatum. The shifting between controlled and automatic behaviors relies in part on striatal function.
File Format	HTM / HTML
ISSN	10473211
e-ISSN	14602199
Journal	Cerebral Cortex
Issue Number	10
Volume Number	25
Language	English
Publisher	Oxford University Press
Publisher Date	2015-10-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Discipline Neuroscience Discipline Neurology Attention Physiology Corpus Striatum Physiopathology Movement Parkinson Disease Psychomotor Performance Brain Mapping Magnetic Resonance Imaging Motor Cortex Prefrontal Cortex Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Cognitive Neuroscience Cellular and Molecular Neuroscience

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