System Derived Spatial-Temporal CNN for High-Density fNIRS BCI

An intuitive and generalisable approach to spatial-temporal feature extraction for high-density (HD) functional Near-Infrared Spectroscopy (fNIRS) brain-computer interface (BCI) is proposed, demonstrated here using Frequency-Domain (FD) fNIRS for motor-task classification. Enabled by the HD probe de...

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Main Authors: Robin Dale, Thomas D. O'sullivan, Scott Howard, Felipe Orihuela-Espina, Hamid Dehghani
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Open Journal of Engineering in Medicine and Biology
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10073629/
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author Robin Dale
Thomas D. O'sullivan
Scott Howard
Felipe Orihuela-Espina
Hamid Dehghani
author_facet Robin Dale
Thomas D. O'sullivan
Scott Howard
Felipe Orihuela-Espina
Hamid Dehghani
author_sort Robin Dale
collection DOAJ
description An intuitive and generalisable approach to spatial-temporal feature extraction for high-density (HD) functional Near-Infrared Spectroscopy (fNIRS) brain-computer interface (BCI) is proposed, demonstrated here using Frequency-Domain (FD) fNIRS for motor-task classification. Enabled by the HD probe design, layered topographical maps of Oxy/deOxy Haemoglobin changes are used to train a 3D convolutional neural network (CNN), enabling simultaneous extraction of spatial and temporal features. The proposed spatial-temporal CNN is shown to effectively exploit the spatial relationships in HD fNIRS measurements to improve the classification of the functional haemodynamic response, achieving an average F1 score of 0.69 across seven subjects in a mixed subjects training scheme, and improving subject-independent classification as compared to a standard temporal CNN.
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spelling doaj.art-7e6c3e2401b54fe7bb62579bcb5900812024-01-26T00:02:06ZengIEEEIEEE Open Journal of Engineering in Medicine and Biology2644-12762023-01-014859510.1109/OJEMB.2023.324849210073629System Derived Spatial-Temporal CNN for High-Density fNIRS BCIRobin Dale0https://orcid.org/0000-0001-8013-7768Thomas D. O'sullivan1https://orcid.org/0000-0001-8662-5121Scott Howard2https://orcid.org/0000-0003-3246-6799Felipe Orihuela-Espina3https://orcid.org/0000-0001-8963-7283Hamid Dehghani4https://orcid.org/0000-0003-4117-0412University of Birmingham, Birmingham, U.K.University of Notre Dame, Notre Dame, IN, USAUniversity of Notre Dame, Notre Dame, IN, USAUniversity of Birmingham, Birmingham, U.K.University of Birmingham, Birmingham, U.K.An intuitive and generalisable approach to spatial-temporal feature extraction for high-density (HD) functional Near-Infrared Spectroscopy (fNIRS) brain-computer interface (BCI) is proposed, demonstrated here using Frequency-Domain (FD) fNIRS for motor-task classification. Enabled by the HD probe design, layered topographical maps of Oxy/deOxy Haemoglobin changes are used to train a 3D convolutional neural network (CNN), enabling simultaneous extraction of spatial and temporal features. The proposed spatial-temporal CNN is shown to effectively exploit the spatial relationships in HD fNIRS measurements to improve the classification of the functional haemodynamic response, achieving an average F1 score of 0.69 across seven subjects in a mixed subjects training scheme, and improving subject-independent classification as compared to a standard temporal CNN.https://ieeexplore.ieee.org/document/10073629/fNIRSbrain-computer interfaceneural networkmachine learningCNN
spellingShingle Robin Dale
Thomas D. O'sullivan
Scott Howard
Felipe Orihuela-Espina
Hamid Dehghani
System Derived Spatial-Temporal CNN for High-Density fNIRS BCI
IEEE Open Journal of Engineering in Medicine and Biology
fNIRS
brain-computer interface
neural network
machine learning
CNN
title System Derived Spatial-Temporal CNN for High-Density fNIRS BCI
title_full System Derived Spatial-Temporal CNN for High-Density fNIRS BCI
title_fullStr System Derived Spatial-Temporal CNN for High-Density fNIRS BCI
title_full_unstemmed System Derived Spatial-Temporal CNN for High-Density fNIRS BCI
title_short System Derived Spatial-Temporal CNN for High-Density fNIRS BCI
title_sort system derived spatial temporal cnn for high density fnirs bci
topic fNIRS
brain-computer interface
neural network
machine learning
CNN
url https://ieeexplore.ieee.org/document/10073629/
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AT scotthoward systemderivedspatialtemporalcnnforhighdensityfnirsbci
AT felipeorihuelaespina systemderivedspatialtemporalcnnforhighdensityfnirsbci
AT hamiddehghani systemderivedspatialtemporalcnnforhighdensityfnirsbci