多刺激率稳态平均去卷积方法关键参数对瞬态反应重建的影响  

Effects of Key Parameters of MSAD Method on Reconstruction of Transient Responses

作　　者：卢智勇 詹长安[2] 王涛 LU Zhiyong;ZHAN Chang'an;WANG Tao(Guangdong Vocational College of Electronic Technology,Guangzhou 510515,China;School of Biomedical Engineering,Southern Medical University,Guangzhou 510515,China;College of Big Data and Internet,Shenzhen Technology University,Shenzhen 518118,China)

机构地区：[1]广东省电子职业技术学校,广东广州510515 [2]南方医科大学生物医学工程学院,广东广州510515 [3]深圳技术大学大数据与互联网学院,广东深圳518118

出　　处：《现代信息科技》2023年第16期84-88,共5页Modern Information Technology

基　　金：国家自然科学基金(81974154);广东省自然科学基金(2023A1515011843)。

摘　　要：多刺激率稳态平均去卷积是一种新型重建瞬态反应成分去卷积方法。该法从若干稳态诱发反应的组合中实现去卷积计算,其抗干扰性能和刺激方案中关键参数的设置密切相关。为优化参数设置,文章基于85 Hz调幅刺激稳态反应,选择拼接个数和刺激率抖动范围两个参数,研究它们对重建计算的性能影响。结果表明,两参数与重建性能有正向相关性,但需以测试时间和名义刺激率模糊为代价。文章通过每种组合模式的重建误差估计随平均叠加次数的变化趋势,直观展示了各组合代价和收益关系,使该方法的参数选取有据可依。Multi-rate Steady-state Averaging Deconvolution(MSAD)is a newly developed deconvolution method for reconstruction of transient responses.This method achieves deconvolution calculation from the combination of several Steady-State Responses(SSRs),and its anti-interference performance is closely related to the setting of key parameters in the stimulus scheme.In order to optimize parameter settings,two parameters,the Splicing Number(SN)and Stimulus-Rate-Jitter(SRJ),are selected based on 85 Hz amplitude-modulated SSRs to study their effects on the performance of reconstruction calculation.The results show that SN and SRJ are positively correlated with reconstruction performance,but at the cost of the experimental time-consumption and ambiguity of the nominal stimulation rate.The relationship between the cost and benefit of different cases is exhibited intuitively through the variation trend of the reconstruction-errors with respect to the average times,which provides guidance for the parameter-setting in the MSAD method.

关 键 词：脑电信号 多刺激率稳态平均去卷积方法 稳态反应 瞬态反应 

分 类 号：R318[医药卫生—生物医学工程] TP39[医药卫生—基础医学]