Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface Applications

Owing to the increased public interest in passive brain–computer interface (pBCI) applications, many wearable devices for capturing electroencephalogram (EEG) signals in daily life have recently been released on the market. However, there exists no well-established criterion to determine the electro...

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Main Authors: Seonghun Park, Chang-Hee Han, Chang-Hwan Im
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/16/4572
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author Seonghun Park
Chang-Hee Han
Chang-Hwan Im
author_facet Seonghun Park
Chang-Hee Han
Chang-Hwan Im
author_sort Seonghun Park
collection DOAJ
description Owing to the increased public interest in passive brain–computer interface (pBCI) applications, many wearable devices for capturing electroencephalogram (EEG) signals in daily life have recently been released on the market. However, there exists no well-established criterion to determine the electrode configuration for such devices. Herein, an overall procedure is proposed to determine the optimal electrode configurations of wearable EEG devices that yield the optimal performance for intended pBCI applications. We utilized two EEG datasets recorded in different experiments designed to modulate emotional or attentional states. Emotion-specialized EEG headsets were designed to maximize the accuracy of classification of different emotional states using the emotion-associated EEG dataset, and attention-specialized EEG headsets were designed to maximize the temporal correlation between the EEG index and the behavioral attention index. General purpose electrode configurations were designed to maximize the overall performance in both applications for different numbers of electrodes (2, 4, 6, and 8). The performance was then compared with that of existing wearable EEG devices. Simulations indicated that the proposed electrode configurations allowed for more accurate estimation of the users’ emotional and attentional states than the conventional electrode configurations, suggesting that wearable EEG devices should be designed according to the well-established EEG datasets associated with the target pBCI applications.
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spelling doaj.art-20d6c69328e445a680e2795fa27a030d2023-11-20T10:11:50ZengMDPI AGSensors1424-82202020-08-012016457210.3390/s20164572Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface ApplicationsSeonghun Park0Chang-Hee Han1Chang-Hwan Im2Department of Biomedical Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Biomedical Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Biomedical Engineering, Hanyang University, Seoul 04763, KoreaOwing to the increased public interest in passive brain–computer interface (pBCI) applications, many wearable devices for capturing electroencephalogram (EEG) signals in daily life have recently been released on the market. However, there exists no well-established criterion to determine the electrode configuration for such devices. Herein, an overall procedure is proposed to determine the optimal electrode configurations of wearable EEG devices that yield the optimal performance for intended pBCI applications. We utilized two EEG datasets recorded in different experiments designed to modulate emotional or attentional states. Emotion-specialized EEG headsets were designed to maximize the accuracy of classification of different emotional states using the emotion-associated EEG dataset, and attention-specialized EEG headsets were designed to maximize the temporal correlation between the EEG index and the behavioral attention index. General purpose electrode configurations were designed to maximize the overall performance in both applications for different numbers of electrodes (2, 4, 6, and 8). The performance was then compared with that of existing wearable EEG devices. Simulations indicated that the proposed electrode configurations allowed for more accurate estimation of the users’ emotional and attentional states than the conventional electrode configurations, suggesting that wearable EEG devices should be designed according to the well-established EEG datasets associated with the target pBCI applications.https://www.mdpi.com/1424-8220/20/16/4572wearable EEG devicepassive brain–computer interfaceelectroencephalographyaffective computing
spellingShingle Seonghun Park
Chang-Hee Han
Chang-Hwan Im
Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface Applications
Sensors
wearable EEG device
passive brain–computer interface
electroencephalography
affective computing
title Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface Applications
title_full Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface Applications
title_fullStr Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface Applications
title_full_unstemmed Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface Applications
title_short Design of Wearable EEG Devices Specialized for Passive Brain–Computer Interface Applications
title_sort design of wearable eeg devices specialized for passive brain computer interface applications
topic wearable EEG device
passive brain–computer interface
electroencephalography
affective computing
url https://www.mdpi.com/1424-8220/20/16/4572
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