Abstract:
:The subthalamic nucleus (STN) is the main target for neurosurgical treatment of motor signs of Parkinson's disease (PD). Despite the therapeutic effect on both upper and lower extremities, its role in motor control and coordination and its changes in Parkinson's disease are not fully clear. We intraoperatively recorded single unit activity in ten patients with PD who performed repetitive feet or hand movements while undergoing implantation of a deep brain stimulator. We found both distinct and overlapping representations of upper and lower extremity movement kinematics in subthalamic units and observed evidence for re-routing to a multi-limb representation that participates in limb coordination. The well-known subthalamic somatotopy showed a large overlap of feet and hand representations in the PD patients. This overlap and excessive amounts of kinematics or coordination units may reflect pathophysiology or compensatory mechanisms. Our findings thus explain, at the single neuron level, the important subthalamic role in motor control and coordination and indicate the effect of PD on the neuronal representation of movement.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Tankus A,Strauss I,Gurevich T,Mirelman A,Giladi N,Fried I,Hausdorff JMdoi
10.1038/srep42467subject
Has Abstractpub_date
2017-02-13 00:00:00pages
42467issn
2045-2322pii
srep42467journal_volume
7pub_type
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