基于时间卷积神经网络的脑电情绪识别方法

doi:10.3969/j.issn.0258-8021.2025.02.002

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Abstract Emotion recognition based on EEG signals plays an important role in the field of human-computer interaction. However, due to the time-varying nature of EEG signals (features may vary significantly at different time periods) and multi-scale characteristics (different features are exhibited at different time and spatial scales), existing deep learning methods often struggle to comprehensively capture and extract various emotion related features from EEG signals. To extract the rich emotional information contained in the time-frequency spatial features of EEG signals, an EEG emotion recognition model that integrates convolutional neural networks (CNN), temporal convolutional networks (TCN), and transformer attention mechanism, frequency spatiotemporal attention temporal convolutional networks (FSA-TCN), was proposed in this work. Firstly, the CNN frequency spatiotemporal convolution layer was used to learn frequency domain information, spatial information, and time domain information, and extracted the frequency spatiotemporal features of EEG signals. Next, the TCN was fused with the Transformer attention mechanism to capture the temporal dependence of frequency spatiotemporal fusion features and extract deep EEG fusion features. Finally, the deep EEG fusion features were input into the fully connected layer for classification. This model conducted ablation experiments and subject dependent and cross subject EEG emotion recognition experiments on 76 800 EEG data samples on the DEAP dataset to verify the effectiveness of each module of the model and its effectiveness in EEG emotion recognition. It achieved emotion recognition accuracy of 92.96% and 92.90% in the valence and arousal dimensions, respectively. In addition, the model's generalization performance was validated on the SEED dataset, and its ability to recognize emotions across datasets was evaluated. The results indicated that the model was able to extract frequency spatiotemporal fusion features of EEG signals and mine deep EEG fusion features and achieved high-precision EEG emotion recognition.

Key words： emotional recognition electroencephalogram(EEG) signals convolutional neural networks attention mechanism

Received: 18 March 2024

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R318

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	Articles by authors
	Peng Lei
	Wei Guohui
	Ma Zhiqing
	Feng Jinyu
	Li Yanjun

Cite this article:

Peng Lei,Wei Guohui,Ma Zhiqing, et al. EEG Emotion Recognition Method Based on Time Convolutional Neural Network[J]. Chinese Journal of Biomedical Engineering, 2025, 44(2): 142-152.

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http://cjbme.csbme.org/EN/10.3969/j.issn.0258-8021.2025.02.002 OR http://cjbme.csbme.org/EN/Y2025/V44/I2/142

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