Bimanual force coordination in Parkinson's disease patients with bilateral subthalamic deep brain stimulation.

Studies of bimanual actions similar to activities of daily living (ADLs) are currently lacking in evaluating fine motor control in Parkinson's disease patients implanted with bilateral subthalamic deep brain stimulators. We investigated basic time and force characteristics of a bimanual task th...

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Main Authors: Stacey L Gorniak, Cameron C McIntyre, Jay L Alberts
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3823934?pdf=render
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author Stacey L Gorniak
Cameron C McIntyre
Jay L Alberts
author_facet Stacey L Gorniak
Cameron C McIntyre
Jay L Alberts
author_sort Stacey L Gorniak
collection DOAJ
description Studies of bimanual actions similar to activities of daily living (ADLs) are currently lacking in evaluating fine motor control in Parkinson's disease patients implanted with bilateral subthalamic deep brain stimulators. We investigated basic time and force characteristics of a bimanual task that resembles performance of ADLs in a group of bilateral subthalamic deep brain stimulation (DBS) patients.Patients were evaluated in three different DBS parameter conditions off stimulation, on clinically derived stimulation parameters, and on settings derived from a patient-specific computational model. Model-based parameters were computed as a means to minimize spread of current to non-motor regions of the subthalamic nucleus via Cicerone Deep Brain Stimulation software. Patients were evaluated off parkinsonian medications in each stimulation condition.The data indicate that DBS parameter state does not affect most aspects of fine motor control in ADL-like tasks; however, features such as increased grip force and grip symmetry varied with the stimulation state. In the absence of DBS parameters, patients exhibited significant grip force asymmetry. Overall UPDRS-III and UPDRS-III scores associated with hand function were lower while patients were experiencing clinically-derived or model-based parameters, as compared to the off-stimulation condition.While bilateral subthalamic DBS has been shown to alleviate gross motor dysfunction, our results indicate that DBS may not provide the same magnitude of benefit to fine motor coordination.
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spelling doaj.art-25d61dabf3f14c7b8a9826cd2bff25ff2022-12-22T01:19:44ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01811e7893410.1371/journal.pone.0078934Bimanual force coordination in Parkinson's disease patients with bilateral subthalamic deep brain stimulation.Stacey L GorniakCameron C McIntyreJay L AlbertsStudies of bimanual actions similar to activities of daily living (ADLs) are currently lacking in evaluating fine motor control in Parkinson's disease patients implanted with bilateral subthalamic deep brain stimulators. We investigated basic time and force characteristics of a bimanual task that resembles performance of ADLs in a group of bilateral subthalamic deep brain stimulation (DBS) patients.Patients were evaluated in three different DBS parameter conditions off stimulation, on clinically derived stimulation parameters, and on settings derived from a patient-specific computational model. Model-based parameters were computed as a means to minimize spread of current to non-motor regions of the subthalamic nucleus via Cicerone Deep Brain Stimulation software. Patients were evaluated off parkinsonian medications in each stimulation condition.The data indicate that DBS parameter state does not affect most aspects of fine motor control in ADL-like tasks; however, features such as increased grip force and grip symmetry varied with the stimulation state. In the absence of DBS parameters, patients exhibited significant grip force asymmetry. Overall UPDRS-III and UPDRS-III scores associated with hand function were lower while patients were experiencing clinically-derived or model-based parameters, as compared to the off-stimulation condition.While bilateral subthalamic DBS has been shown to alleviate gross motor dysfunction, our results indicate that DBS may not provide the same magnitude of benefit to fine motor coordination.http://europepmc.org/articles/PMC3823934?pdf=render
spellingShingle Stacey L Gorniak
Cameron C McIntyre
Jay L Alberts
Bimanual force coordination in Parkinson's disease patients with bilateral subthalamic deep brain stimulation.
PLoS ONE
title Bimanual force coordination in Parkinson's disease patients with bilateral subthalamic deep brain stimulation.
title_full Bimanual force coordination in Parkinson's disease patients with bilateral subthalamic deep brain stimulation.
title_fullStr Bimanual force coordination in Parkinson's disease patients with bilateral subthalamic deep brain stimulation.
title_full_unstemmed Bimanual force coordination in Parkinson's disease patients with bilateral subthalamic deep brain stimulation.
title_short Bimanual force coordination in Parkinson's disease patients with bilateral subthalamic deep brain stimulation.
title_sort bimanual force coordination in parkinson s disease patients with bilateral subthalamic deep brain stimulation
url http://europepmc.org/articles/PMC3823934?pdf=render
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AT jaylalberts bimanualforcecoordinationinparkinsonsdiseasepatientswithbilateralsubthalamicdeepbrainstimulation