The Effect of Sensory Reweighting on Postural Control and Cortical Activity in Parkinson's Disease: A Pilot Study

The Effect of Sensory Reweighting on Postural Control and Cortical Activity in Parkinson's Disease: A Pilot Study

Objective: To investigate the effects of sensory reweighting on postural control and cortical activity in individuals with Parkinson's disease (PD) compared to age-matched controls using a virtual reality sensory organization test (VR-SOT). Design: Cross-sectional pilot study. Setting: Universi...

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Main Authors: Maryam Sadeghi, MS, Thomas Bristow, BS, Sodiq Fakorede, BS, Ke Liao, PhD, Jacqueline A. Palmer, PhD, Kelly E. Lyons, PhD, Rajesh Pahwa, MD, Chun-Kai Huang, PhD, Abiodun Akinwuntan, PhD, Hannes Devos, PhD
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Archives of Rehabilitation Research and Clinical Translation
Subjects:
Center of pressure
Electroencephalography
Parkinson's disease
Postural control
Rehabilitation
Sensory reweighting
Online Access:http://www.sciencedirect.com/science/article/pii/S2590109524000661
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Summary:Objective: To investigate the effects of sensory reweighting on postural control and cortical activity in individuals with Parkinson's disease (PD) compared to age-matched controls using a virtual reality sensory organization test (VR-SOT). Design: Cross-sectional pilot study. Setting: University research laboratory. Participants: Ten participants with idiopathic Parkinson's disease and 11 age- and sex-matched control participants without neurologic disorders. Interventions: Not applicable. Main Outcome Measures: Changes in center of pressure (COP) and electroencephalography (EEG) activity (ie, power) in the alpha band and the theta/beta ratio recorded during the VR-SOT were the main outcome variables. Results: PD participants exhibited greater COP displacement, particularly in the mediolateral direction across sensory conditions. They also showed increased alpha power when relying on visual inputs and increased theta/beta ratio power when depending on somatosensory inputs. Conclusion: PD affects sensory reweighting mechanisms involved in postural control, as evidenced by greater COP displacement and altered cortical activity. These findings emphasize the potential of EEG and VR-SOT in understanding and monitoring postural control impairments in PD.
ISSN:2590-1095

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