电触觉皮肤机理仿真与刺激模式量化评估.pdf

第37卷第4期
仪器仪表学报
2016年4月
Chinese Journal of Scientific Instrument
pr.2016
电触觉皮肤机理仿真与刺激模式量化评估
贺凯2,于鹏,赵亮',席宁,刘连庆
(1.中国科学院沈阳自动化研究所沈阳110016:2.中国科学院大学北京100049)
摘要:电触觉是目前虚拟现实技术触觉实现方法的重要手段,然而由于缺乏触感量化和不同剌激模式下同种触感再现效果比
较方法,一定程度上阻碍着电触觉应用的广泛开展。本文以经典电刺激模型为基础,研究了不同刺激模式下3种皮肤机被感受
器( Meissner i触觉小体, Merkel触盘和 Pacinian环层小体)的刺激响应,分析了3种机械感受器最优刺激范式,以及电极同距
数量等参数对于不同感受器响应的影响。首次引人神经纤维电位传导模型、对电触觉触感强度分级实验的机理和影响因素进
行了理论分析和仿真实验,并以此为基础设计了不同刺激模式的实现方式。最后通过指尖电触觉心理学分级实验评价了不同
模式下感受器的刺激效果,得到了对于两种感受器( Meissner触党小体, Merkel触盘)独立刺激的最优刺激范式,为进一步提高
电刺激触觉再现效果提供了理论和实验支持
关键词:电触觉;皮肤电刺激建模;触觉量化;触觉再现:神经传导;触觉分级理论基础
中图分类号:TH70TP39」文献标识码:A国家标准学科分类代码:460.4020510.801
Quantitative evaluation of electrotactile feeling for the cutaneous nervous
mechanism simulation and stimulation method
He Kai", Yu Peng, Zhao liang, Xi Ning Liu Lanqing
(I.State Key Laboratory ofrobutics, heyang Ist wte fom, Chinese Academy of Sciences, Sheyang 1006, China
University of Chinese Academy of Sciences, Beging 1009, China
Abstract: Electrotactile stimulation is e of ey chniques displa tactile feeling in virual reality, which has been well studied for
decade years. However, its wide applications are still hindered due o e lack ofuanzaon ms, r et ealuating mehod of
the tactile feeling display under ifferent stimulating modes. Here, based on the classical MCNE, model of cutaneous nerve under
electrical stimulati
eptors Meissner's corpuscle, Merkel's disc and Pancini
cle)
investigated with difterent electrical stimulation methods. Influence of electrode distance, electrode quantity, and the optimal stimula
ting method of dif rent mechanoreceptors is analyzed in detail. Besides, to further explain the mechanism and the influence factor of the
haptic experiment nf tactile feeling recognition, theoretical analysis and simulation are carried out, and a new theory combined with
action potential corduet ng model of ve f er is seen D feent electrcal station modes are desid to est efficieny an
efectiveness of the proposed theory. The stimulating effeets of different mechanoreceptors are evaluated through psychophysical
experiments of tactile feeling recognition in a rial-and-or way. The optimized method of the two mechanoreceptors(Meissners
corpuscle, Merkels dise )with independent stimulating is obtained, which in turn lays both the theoretical and experimental foundation
for further improving the effectiveness of the tactile feeling display
Keywords electrical stimulation; electrotactile; cutaneous nerves; tactile feeling display; hodgkin-huxdey model; optimal stimulation
method; quantitative experiments
收稿日期:20160] Received Date:201601
基金项目:国家自然科学基金青年基金(61304251)、中国科学院一国家外国专家局创新团队项目、中国科学院国际合作貢点课题
(173321KYSB20130006)项目资助
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