eprintid: 14866
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/48/66
datestamp: 2023-11-10 03:29:27
lastmod: 2023-11-10 03:29:27
status_changed: 2023-11-10 01:58:01
type: article
metadata_visibility: show
creators_name: Al-Quraishi, M.S.
creators_name: Elamvazuthi, I.
creators_name: Tang, T.B.
creators_name: Al-Qurishi, M.
creators_name: Adil, S.H.
creators_name: Ebrahim, M.
title: Bimodal data fusion of simultaneous measurements of EEG and fNIRS during lower limb movements
ispublished: pub
keywords: adult; algorithm; ankle; Article; brain blood flow; brain cortex; data analysis; electroencephalogram; electroencephalography; electroencephalography phase synchronization; evoked brain stem auditory response; evoked response; functional near-infrared spectroscopy; heart rate; hemodynamics; human; human experiment; infrared spectroscopy; joint function; leg movement; limb movement; magnetoencephalography; male; measurement accuracy; motor cortex; near infrared spectroscopy; neurovascular coupling; normal human; oscillation; sensitivity and specificity; skin conductance; support vector machine
note: cited By 7
abstract: Electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) have temporal and spatial characteristics that may complement each other and, therefore, pose an intriguing approach for brain-computer interaction (BCI). In this work, the relationship between the hemodynamic response and brain oscillation activity was investigated using the concurrent recording of fNIRS and EEG during ankle joint movements. Twenty subjects participated in this experiment. The EEG was recorded using 20 electrodes and hemodynamic responses were recorded using 32 optodes positioned over the motor cortex areas. The event-related desynchronization (ERD) feature was extracted from the EEG signal in the alpha band (8�11) Hz, and the concentration change of the oxy-hemoglobin (oxyHb) was evaluated from the hemodynamics response. During the motor execution of the ankle joint movements, a decrease in the alpha (8�11) Hz amplitude (desynchronization) was found to be correlated with an increase of the oxyHb (r = -0.64061, p < 0.00001) observed on the Cz electrode and the average of the fNIRS channels (ch28, ch25, ch32, ch35) close to the foot area representation. Then, the correlated channels in both modalities were used for ankle joint movement classification. The result demonstrates that the integrated modality based on the correlated channels provides a substantial enhancement in ankle joint classification accuracy of 93.01 ± 5.60 (p < 0.01) compared with single modality. These results highlight the potential of the bimodal fNIR�EEG approach for the development of future BCI for lower limb rehabilitation. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
date: 2021
publisher: MDPI
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107356645&doi=10.3390%2fbrainsci11060713&partnerID=40&md5=899c8d50480e14de98ebfbd633caadb2
id_number: 10.3390/brainsci11060713
full_text_status: none
publication: Brain Sciences
volume: 11
number: 6
refereed: TRUE
issn: 20763425
citation:   Al-Quraishi, M.S. and Elamvazuthi, I. and Tang, T.B. and Al-Qurishi, M. and Adil, S.H. and Ebrahim, M.  (2021) Bimodal data fusion of simultaneous measurements of EEG and fNIRS during lower limb movements.  Brain Sciences, 11 (6).   ISSN 20763425