Title
Decoding of Human Movements Based on Deep Brain Local Field Potentials Using Ensemble Neural Networks.
Abstract
Decoding neural activities related to voluntary and involuntary movements is fundamental to understanding human brain motor circuits and neuromotor disorders and can lead to the development of neuromotor prosthetic devices for neurorehabilitation. This study explores using recorded deep brain local field potentials (LFPs) for robust movement decoding of Parkinson's disease (PD) and Dystonia patients. The LFP data from voluntary movement activities such as left and right hand index finger clicking were recorded from patients who underwent surgeries for implantation of deep brain stimulation electrodes. Movement-related LFP signal features were extracted by computing instantaneous power related tomotor response in different neural frequency bands. An innovative neural network ensemble classifier has been proposed and developed for accurate prediction of finger movement and its forthcoming laterality. The ensemble classifier contains three base neural network classifiers, namely, feedforward, radial basis, and probabilistic neural networks. The majority voting rule is used to fuse the decisions of the three base classifiers to generate the final decision of the ensemble classifier. The overall decoding performance reaches a level of agreement (kappa value) at about 0.729 +/- 0.16 for decoding movement from the resting state and about 0.671 +/- 0.14 for decoding left and right visually cued movements.
Year
DOI
Venue
2017
10.1155/2017/5151895
COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE
Field
DocType
Volume
Laterality,Computer science,Resting state fMRI,Artificial intelligence,Classifier (linguistics),Artificial neural network,Index finger,Pattern recognition,Cued speech,Speech recognition,Local field potential,Decoding methods,Machine learning
Journal
2017
ISSN
Citations 
PageRank 
1687-5265
0
0.34
References 
Authors
5
3
Name
Order
Citations
PageRank
Mohammad S Islam101.01
Khondaker A. Mamun2224.36
Hai Deng300.68