Can EEG resting state data benefit data-driven approaches for motor-imagery decoding?

• URL: http://arxiv.org/abs/2411.09789v1
• Date: Mon, 28 Oct 2024 07:18:32 GMT
• Title: Can EEG resting state data benefit data-driven approaches for motor-imagery decoding?
• Authors: Rishan Mehta, Param Rajpura, Yogesh Kumar Meena,
• Abstract summary: We propose a feature concatenation approach to enhance decoding models' generalization. We combine the EEGNet model, a standard convolutional neural network for EEG signal classification, with functional connectivity measures derived from resting-state EEG data. While an improvement in mean accuracy for within-user scenarios is observed, concatenation doesn't benefit across-user scenarios when compared with random data concatenation.
• Score: 4.870701423888026
• License:
• Abstract: Resting-state EEG data in neuroscience research serve as reliable markers for user identification and reveal individual-specific traits. Despite this, the use of resting-state data in EEG classification models is limited. In this work, we propose a feature concatenation approach to enhance decoding models' generalization by integrating resting-state EEG, aiming to improve motor imagery BCI performance and develop a user-generalized model. Using feature concatenation, we combine the EEGNet model, a standard convolutional neural network for EEG signal classification, with functional connectivity measures derived from resting-state EEG data. The findings suggest that although grounded in neuroscience with data-driven learning, the concatenation approach has limited benefits for generalizing models in within-user and across-user scenarios. While an improvement in mean accuracy for within-user scenarios is observed on two datasets, concatenation doesn't benefit across-user scenarios when compared with random data concatenation. The findings indicate the necessity of further investigation on the model interpretability and the effect of random data concatenation on model robustness.

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