EEG-based emotion recognition using regularized graph neural networks

Electroencephalography (EEG) measures the neuronal activities in different brain regions via electrodes. Many existing studies on EEG-based emotion recognition do not fully exploit the topology of EEG channels. In this paper, we propose a regularized graph neural network (RGNN) for EEG-based emot...

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Main Authors: Zhong, Peixiang, Wang, Di, Miao, Chunyan
Other Authors: School of Computer Science and Engineering
Format: Journal Article
Language:English
Published: 2021
Subjects:
Online Access:https://hdl.handle.net/10356/152723
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author Zhong, Peixiang
Wang, Di
Miao, Chunyan
author2 School of Computer Science and Engineering
author_facet School of Computer Science and Engineering
Zhong, Peixiang
Wang, Di
Miao, Chunyan
author_sort Zhong, Peixiang
collection NTU
description Electroencephalography (EEG) measures the neuronal activities in different brain regions via electrodes. Many existing studies on EEG-based emotion recognition do not fully exploit the topology of EEG channels. In this paper, we propose a regularized graph neural network (RGNN) for EEG-based emotion recognition. RGNN considers the biological topology among different brain regions to capture both local and global relations among different EEG channels. Specifically, we model the inter-channel relations in EEG signals via an adjacency matrix in a graph neural network where the connection and sparseness of the adjacency matrix are inspired by neuroscience theories of human brain organization. In addition, we propose two regularizers, namely node-wise domain adversarial training (NodeDAT) and emotion-aware distribution learning (EmotionDL), to better handle cross-subject EEG variations and noisy labels, respectively. Extensive experiments on two public datasets, SEED and SEED-IV, demonstrate the superior performance of our model than state-of-the-art models in most experimental settings. Moreover, ablation studies show that the proposed adjacency matrix and two regularizers contribute consistent and significant gain to the performance of our RGNN model. Finally, investigations on the neuronal activities reveal important brain regions and inter-channel relations for EEG-based emotion recognition.
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spelling ntu-10356/1527232021-12-09T08:22:12Z EEG-based emotion recognition using regularized graph neural networks Zhong, Peixiang Wang, Di Miao, Chunyan School of Computer Science and Engineering Joint NTU-UBC Research Centre of Excellence in Active Living for the Elderly (LILY) Alibaba-NTU Singapore Joint Research Institute Engineering::Computer science and engineering Affective Computing Electroencephalography Electroencephalography (EEG) measures the neuronal activities in different brain regions via electrodes. Many existing studies on EEG-based emotion recognition do not fully exploit the topology of EEG channels. In this paper, we propose a regularized graph neural network (RGNN) for EEG-based emotion recognition. RGNN considers the biological topology among different brain regions to capture both local and global relations among different EEG channels. Specifically, we model the inter-channel relations in EEG signals via an adjacency matrix in a graph neural network where the connection and sparseness of the adjacency matrix are inspired by neuroscience theories of human brain organization. In addition, we propose two regularizers, namely node-wise domain adversarial training (NodeDAT) and emotion-aware distribution learning (EmotionDL), to better handle cross-subject EEG variations and noisy labels, respectively. Extensive experiments on two public datasets, SEED and SEED-IV, demonstrate the superior performance of our model than state-of-the-art models in most experimental settings. Moreover, ablation studies show that the proposed adjacency matrix and two regularizers contribute consistent and significant gain to the performance of our RGNN model. Finally, investigations on the neuronal activities reveal important brain regions and inter-channel relations for EEG-based emotion recognition. AI Singapore Nanyang Technological University Accepted version This research is supported, in part, by the Alibaba-NTU Singapore Joint Research Institute (Alibaba-NTU-AIR2019B1), Nanyang Technological University, Singapore. 2021-12-09T08:22:12Z 2021-12-09T08:22:12Z 2020 Journal Article Zhong, P., Wang, D. & Miao, C. (2020). EEG-based emotion recognition using regularized graph neural networks. IEEE Transactions On Affective Computing. https://dx.doi.org/10.1109/TAFFC.2020.2994159 1949-3045 https://hdl.handle.net/10356/152723 10.1109/TAFFC.2020.2994159 en Alibaba-NTU-AIR2019B1 IEEE Transactions on Affective Computing © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/TAFFC.2020.2994159. application/pdf
spellingShingle Engineering::Computer science and engineering
Affective Computing
Electroencephalography
Zhong, Peixiang
Wang, Di
Miao, Chunyan
EEG-based emotion recognition using regularized graph neural networks
title EEG-based emotion recognition using regularized graph neural networks
title_full EEG-based emotion recognition using regularized graph neural networks
title_fullStr EEG-based emotion recognition using regularized graph neural networks
title_full_unstemmed EEG-based emotion recognition using regularized graph neural networks
title_short EEG-based emotion recognition using regularized graph neural networks
title_sort eeg based emotion recognition using regularized graph neural networks
topic Engineering::Computer science and engineering
Affective Computing
Electroencephalography
url https://hdl.handle.net/10356/152723
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AT wangdi eegbasedemotionrecognitionusingregularizedgraphneuralnetworks
AT miaochunyan eegbasedemotionrecognitionusingregularizedgraphneuralnetworks