基于MCSANet网络的运动想象脑电分类

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中图分类号：TN929.5-34；TP391 文献标识码：A 文章编号：1004-373X（2025）16-0067-08

MotorimageryEEGclassificationbasedonMCSANet

DU Jiang¹，²， BI Feng³ （1.SchoolofComputerScienceand Technology，Shenyang UniversityofChemicalTechnology，Shenyang11o142，China;

2.LiaonngProvincialKeyLaboratoryofIntellgentTechnologyforChemicalProcessIndustryhenyang1O142China;

3.SchoolofInformationEngineering，LiaodongUniversity，Dandong118Oo3，China）

Abstract：Inordertosolve theproblemof insuficient feature miningand insufficient utilization indecoding electroencephalography（EG）signalsbymeansofthetraditionaldeeplearningmethod，aeeplearningmodel，MANet，is proposed，whichcombinestheparalelmulti-scaletemporalconvolutionwithsliding windowtechnologyandatentionmchanism. Theparalelmulti-scaletemporalconvolutionissedtofectivelycapturethetmporalcharacteristicsandspatialchracteistics ofEEGsignalsatdiferenttimescales.Theslidingwindowslicingtechnologyisusedtodividethefeaturesequencesand increase the numberof sequence samples.The weights ofeach partofthe sequence samples areasignedandfused by means of themulti-headself-atentionmechanism，whichcanfurther highlightmorekeyfeatures.Thefullyconnectedlayerandthe SoftMaxlayerareusedtowork together，soastoperformin-depthlearningandaccurateclasificationforthecapturedfeatures. Inorder tovalidatetheperformaneofthemodel，anexhaustiveexperimentalanalysiswasperformedontheBCICIV-2adataset. Theexperimentalresultsshowthattheaverageclassificationaccuracyofallsubjectsisashighas81.69%，whichverfisthe effectivenessoftheproposedmethodinminingthedeeppotential featuresofEEGand improvingtheclasificationperformance of motor imagery EEG.

Keywords：braincomputer interface;EEGsignal;parallelmulti -scale temporal convolution；sliding window slicing technology;multi-head self-attentionmechanism;ablation experiment

0 引言

解码人或动物大脑产生的脑电信号，实现脑与外部设备之间的信息交换[。（剩余11652字）