大脑α波能量实时反馈调节的经穴磁刺激方法.pdf

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1、第26卷第12期传感技术学报V01．26No．122013年12月CHINESEJOURNALOFSENSORSANDACTUATORSDec．2013TheReal-TimeFeedbackAdjustmentofMeridianMagneticStimulationParametersBasedonBrain’Se~-WaveEnergyWANGChunhui，QIAOXiaoyan(CollegeofPhysicsandElectronicsEngineering，ShanxiUniversity，Taiyuan030006，China)Abstract：Existingel

2、ectrical，magneticstimulationsystemsmainlyrelyonthepatient’Ssubjectivefeelingsandexperiencesofthephysiciantoadjustthestimulationparameters．Tomakethismethodmorembustandflexible，thisworkproposesafeedbackregulationofmeridianmagneticstimulationbasedon仅一waveenergyofbrain．Firstly．themagneticstimulati

3、oninstrumentisutilizedtoproducecertainintensity，frequency，waveformstimulussignals．Thesignalsareconvertedtothemagneticfieldstostimulatethesubject'sspecificacupuncturepointthroughthetrumpet—shapedmagneticcoil．Subsequently，theEEGsignalsarecollectedusingthe16一leadEEGinstrument．Digitalband-passfilt

4、eringandARmodelpowerspectrumanalysisareappliedtotheEEGsignalstocalculatethebrain·waveenergy．Finally．thedigitalcommandsofmeridianmagneticstimulationfeedbackregulationareobtainedbasedonthewaveenergyvaluesofthebrain．Thesedigitalcommandsareconvertedintocontrolcommandsthroughthemicro—controllertoma

5、nipulatethesignalgeneratingmoduleandthepoweramplifiermoduleforparameteradjustmentofthemagneticstimulation．Experimentalresultsshowthatthisapproachcanoptimizetheinputofthemeridianmagneticstimulationandgettheoptimalmeridianmagneticstimulationparameters．Alsoitcanimprovethebrain’So【一waveenergyandpr

6、omotetherecoveryofpatient’Snervoussystemwiththecerebralpalsyandtheself-rehabilitationoftheparalyzedlimbs．Keywords：BCI；meridianmagneticstimulationsystem；feedbackadjustment；brain’S0【wave；EEGsignalprocessing；powerspectrumanalysisEEACC：7230Jdoi：10．3969／j．issn．1004-1699．2013．12．002大脑OL波能量实时反馈调节的经穴磁

7、刺激方法术王春晖，乔晓艳(山西大学物理电子工程学院，太原030006)摘要：针对现有电、磁刺激系统依靠患者主观感觉和医生经验对刺激参数进行调节的不足，提出了一种大脑波能量反馈调节的经穴磁刺激方法。首先，利用磁刺激发生仪产生一定强度、频率、波形的刺激信号，通过喇叭状磁线圈刺激受试者内关穴；然后，利用16导联脑电仪采集大脑6导联脑电信号，并对其进行数字带通滤波和AR参数模型功率谱分析，计算大脑仅波能量。最后，根据大脑d波能量值，获得经穴磁刺激反馈调节的数字指令，经单片机转