Alireza Kazemi , Salar Nouri , Maryam S. Mirian , Soojin Lee , Martin J. McKeown
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引用次数: 0
Abstract
Objective
1) To evaluate the importance of various EEG Phase Amplitude Couplings (PACs) in predicting motor vigor (MV) in Parkinson’s Disease (PD). 2) To determine the effects of dopaminergic medication and non-invasive galvanic vestibular stimulation (GVS) on MV-related PACs.
Methods
EEG data from 18 PD patients in comparison to 20 HC controls, executing a simple overlearned handgrip task was used, to identify PD-specific alterations. A deep learning model, PACNET, based on the VGG-16 architecture, was used to predict MV from a visual representation of different PACs.
Results
Delta-Beta, Theta-, Alpha-, and Beta-Gamma PACs were important for MV prediction. In PD subjects, GVS affected Delta-Beta, and Theta-, Beta- Gamma PAC’s role in MV prediction in a stimulation-specific manner. Delta-Beta and Theta-Gamma PACs were more relevant for PD patients’ MV prediction after L-dopa medication.
Conclusions
Multiple PACs are important for MV in Parkinson’s disease. Therapeutic interventions affect PAC/MV associations.
Significance
Multiple PACs, not just Beta–Gamma, are important for MV in PD and may serve as targets for neuromodulation strategies. A combined assessment of PACs could be a valuable biomarker for both disease evaluation and therapeutic effects in PD.
期刊介绍:
As of January 1999, The journal Electroencephalography and Clinical Neurophysiology, and its two sections Electromyography and Motor Control and Evoked Potentials have amalgamated to become this journal - Clinical Neurophysiology.
Clinical Neurophysiology is the official journal of the International Federation of Clinical Neurophysiology, the Brazilian Society of Clinical Neurophysiology, the Czech Society of Clinical Neurophysiology, the Italian Clinical Neurophysiology Society and the International Society of Intraoperative Neurophysiology.The journal is dedicated to fostering research and disseminating information on all aspects of both normal and abnormal functioning of the nervous system. The key aim of the publication is to disseminate scholarly reports on the pathophysiology underlying diseases of the central and peripheral nervous system of human patients. Clinical trials that use neurophysiological measures to document change are encouraged, as are manuscripts reporting data on integrated neuroimaging of central nervous function including, but not limited to, functional MRI, MEG, EEG, PET and other neuroimaging modalities.