Regression Networks for Neurophysiological Indicator Evaluation in Practicing Motor Imagery Tasks

Motor Imagery (MI) promotes motor learning in activities, like developing professional motor skills, sports gestures, and patient rehabilitation. However, up to 30% of users may not develop enough coordination skills after training sessions because of inter and intra-subject variability. Here, we de...

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Main Authors: Luisa Velasquez-Martinez, Julian Caicedo-Acosta, Carlos Acosta-Medina, Andres Alvarez-Meza, German Castellanos-Dominguez
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/10/10/707
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author Luisa Velasquez-Martinez
Julian Caicedo-Acosta
Carlos Acosta-Medina
Andres Alvarez-Meza
German Castellanos-Dominguez
author_facet Luisa Velasquez-Martinez
Julian Caicedo-Acosta
Carlos Acosta-Medina
Andres Alvarez-Meza
German Castellanos-Dominguez
author_sort Luisa Velasquez-Martinez
collection DOAJ
description Motor Imagery (MI) promotes motor learning in activities, like developing professional motor skills, sports gestures, and patient rehabilitation. However, up to 30% of users may not develop enough coordination skills after training sessions because of inter and intra-subject variability. Here, we develop a data-driven estimator, termed Deep Regression Network (DRN), which jointly extracts and performs the regression analysis in order to assess the efficiency of the individual brain networks in practicing MI tasks. The proposed double-stage estimator initially learns a pool of deep patterns, extracted from the input data, in order to feed a neural regression model, allowing for infering the distinctiveness between subject assemblies having similar variability. The results, which were obtained on real-world MI data, prove that the DRN estimator fosters pre-training neural desynchronization and initial training synchronization to predict the bi-class accuracy response, thus providing a better understanding of the Brain–Computer Interface inefficiency of subjects.
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spelling doaj.art-23719c172ddf4032ab00c14ccd9dcd5c2023-11-20T16:03:54ZengMDPI AGBrain Sciences2076-34252020-10-01101070710.3390/brainsci10100707Regression Networks for Neurophysiological Indicator Evaluation in Practicing Motor Imagery TasksLuisa Velasquez-Martinez0Julian Caicedo-Acosta1Carlos Acosta-Medina2Andres Alvarez-Meza3German Castellanos-Dominguez4Signal Processing and Recognition Group, Universidad Nacional de Colombia, Manizales 170004, ColombiaSignal Processing and Recognition Group, Universidad Nacional de Colombia, Manizales 170004, ColombiaSignal Processing and Recognition Group, Universidad Nacional de Colombia, Manizales 170004, ColombiaSignal Processing and Recognition Group, Universidad Nacional de Colombia, Manizales 170004, ColombiaSignal Processing and Recognition Group, Universidad Nacional de Colombia, Manizales 170004, ColombiaMotor Imagery (MI) promotes motor learning in activities, like developing professional motor skills, sports gestures, and patient rehabilitation. However, up to 30% of users may not develop enough coordination skills after training sessions because of inter and intra-subject variability. Here, we develop a data-driven estimator, termed Deep Regression Network (DRN), which jointly extracts and performs the regression analysis in order to assess the efficiency of the individual brain networks in practicing MI tasks. The proposed double-stage estimator initially learns a pool of deep patterns, extracted from the input data, in order to feed a neural regression model, allowing for infering the distinctiveness between subject assemblies having similar variability. The results, which were obtained on real-world MI data, prove that the DRN estimator fosters pre-training neural desynchronization and initial training synchronization to predict the bi-class accuracy response, thus providing a better understanding of the Brain–Computer Interface inefficiency of subjects.https://www.mdpi.com/2076-3425/10/10/707sensorimotor rhythmevent-related de/synchronizationbrain-computer inefficiencyregression networks
spellingShingle Luisa Velasquez-Martinez
Julian Caicedo-Acosta
Carlos Acosta-Medina
Andres Alvarez-Meza
German Castellanos-Dominguez
Regression Networks for Neurophysiological Indicator Evaluation in Practicing Motor Imagery Tasks
Brain Sciences
sensorimotor rhythm
event-related de/synchronization
brain-computer inefficiency
regression networks
title Regression Networks for Neurophysiological Indicator Evaluation in Practicing Motor Imagery Tasks
title_full Regression Networks for Neurophysiological Indicator Evaluation in Practicing Motor Imagery Tasks
title_fullStr Regression Networks for Neurophysiological Indicator Evaluation in Practicing Motor Imagery Tasks
title_full_unstemmed Regression Networks for Neurophysiological Indicator Evaluation in Practicing Motor Imagery Tasks
title_short Regression Networks for Neurophysiological Indicator Evaluation in Practicing Motor Imagery Tasks
title_sort regression networks for neurophysiological indicator evaluation in practicing motor imagery tasks
topic sensorimotor rhythm
event-related de/synchronization
brain-computer inefficiency
regression networks
url https://www.mdpi.com/2076-3425/10/10/707
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