Title
Decoding Movements from Human Deep Brain Local Field Potentials Using Radial Basis Function Neural Network
Abstract
Research on neural process is fundamental to understand neurodegenerative disorders and develop its interventions. This also enhances the development of brain machine interfaces to assist neurologically impaired human and rehabilitation. This study aimed to decode deep brain local field potentials (LFPs) related to voluntary movement activities and its forthcoming laterality, left or right sided visually cued movements. The frequency related components of local field potentials from the sub thalamic nucleus (STN) were decomposed by time scale domain using wavelet packet transform (WPT). In each frequency component, event related instantaneous power was considered as features for decoding. Decoding of movement (Event vs. Rest) and its sequential laterality (Left vs. Right) were performed using radial basis function neural network (RBFNN). The average classification accuracy achieved 85.93% for distinguishing movement from the rest, while laterality discrimination, the accuracy achieved 70.81% with 10 fold cross validation. The RBFNN classifier successfully managed to achieve decoding accuracy better than the chance level during movement and its laterality for all subjects.
Year
DOI
Venue
2014
10.1109/CBMS.2014.77
Computer-Based Medical Systems
Keywords
Field
DocType
bioelectric potentials,brain,medical signal processing,neurophysiology,radial basis function networks,signal classification,wavelet transforms,LFP,RBFNN classifier,STN,WPT,event related instantaneous power,human deep brain local field potentials,left sided visually cued movements,movement decoding,movement sequential laterality,radial basis function neural network,right sided visually cued movements,sub-thalamic nucleus,time scale domain decomposition,voluntary movement activities,wavelet packet transform,BMI,Deep Brain Stimulation-DBS,Hilbert Transform-HT,Local Field Potential-LFP,RBFNN
Laterality,Computer science,Cued speech,Speech recognition,Feature extraction,Local field potential,Decoding methods,Classifier (linguistics),Wavelet packet decomposition,Cross-validation
Conference
ISSN
Citations 
PageRank 
2372-9198
0
0.34
References 
Authors
2
4
Name
Order
Citations
PageRank
Mohammad S. Islam100.34
Muhammad S. Khan2293.72
Hai Deng3655.87
Khondaker A. Mamun4224.36