arXiv:2504.18095cs.LGeess.SP2025-04被引 1

用脑电图区分冥想与静息状态,跨人泛化效果好。

Subject-independent Classification of Meditative State from the Resting State using EEG

  • 用CSP+SVD提取特征,结合LSTM或浅层网络分类
  • 跨人分类准确率达96.4%,接近最佳已有结果
  • 适合脑机接口、冥想监测等需跨人通用的场景

尽管客观判断个体是否处于冥想状态有益,但多数现有研究仅在个体依赖条件下表现良好。本研究旨在利用脑电图(EEG)数据,以跨人方式区分拉吉瑜伽冥想状态与大脑静息状态。提出了三种架构:CSP-LDA 使用共空间模式(CSP)提取特征,线性判别分析(LDA)分类;CSP-LDA-LSTM 在此基础上引入长短期记忆网络(LSTM),将二分类问题建模为序列学习;SVD-NN 则采用奇异值分解(SVD)筛选关键信号成分,配合浅层神经网络(NN)分类。CSP-LDA-LSTM 在同人分类中达到98.2%准确率,而SVD-NN在跨人分类中达96.4%准确率,与文献中最佳同人结果相当。两种架构均能有效捕捉跨人不变的脑电特征,表现出强鲁棒性和泛化能力。

原文摘要 · Abstract (English)

While it is beneficial to objectively determine whether a subject is meditating, most research in the literature reports good results only in a subject-dependent manner. This study aims to distinguish the modified state of consciousness experienced during Rajyoga meditation from the resting state of the brain in a subject-independent manner using EEG data. Three architectures have been proposed and evaluated: The CSP-LDA Architecture utilizes common spatial pattern (CSP) for feature extraction and linear discriminant analysis (LDA) for classification. The CSP-LDA-LSTM Architecture employs CSP for feature extraction, LDA for dimensionality reduction, and long short-term memory (LSTM) networks for classification, modeling the binary classification problem as a sequence learning problem. The SVD-NN Architecture uses singular value decomposition (SVD) to select the most relevant components of the EEG signals and a shallow neural network (NN) for classification. The CSP-LDA-LSTM architecture gives the best performance with 98.2% accuracy for intra-subject classification. The SVD-NN architecture provides significant performance with 96.4\% accuracy for inter-subject classification. This is comparable to the best-reported accuracies in the literature for intra-subject classification. Both architectures are capable of capturing subject-invariant EEG features for effectively classifying the meditative state from the resting state. The high intra-subject and inter-subject classification accuracies indicate these systems' robustness and their ability to generalize across different subjects.

脑电图冥想识别跨人分类LSTM

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。