Electronic Science and Technology ›› 2022, Vol. 35 ›› Issue (12): 10-16.doi: 10.16180/j.cnki.issn1007-7820.2022.12.002

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Classification and Recognition of P300 Event-Related Potential Based on LSTM-Attention Network

WANG Xialin,KAN Xiu,FAN Yixuan   

  1. School of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China
  • Received:2021-05-11 Online:2022-12-15 Published:2022-12-13
  • Supported by:
    National Natural Science Foundation of China(61703270)

Abstract:

In view of the problem of low recognition and classification accuracy of P300 event-related potentials in EEG signals, a recognition and classification method of P300 event-related potentials based on LSTM-Attention network is proposed in this study. In the data processing stage, SMOTE is utilized to augment P300 potential data in EEG signals, and irrelevant noise in synthetic data is eliminated based on DBSCAN clustering algorithm. In the identification and classification stage, an LSTM-Attention classification and identification network is built by adding an attention mechanism and a Dropout layer after the LSTM network, and the Sigmoid function is used to output the identification and classification results of the P300 event-related potential. The experimental results show that the proposed method can effectively recognize and classify P300 event-related potentials in EEG signals, and the average accuracy and Dice coefficient are up to 91.9% and 91.7%, respectively. Compared with traditional methods, the accuracy is higher and the generalization performance is stronger.

Key words: P300 event-related potential, EEG, LSTM, attention mechanism, data processing, SMOTE, DBSCAN, recognition and classification

CLC Number: 

  • TP391