[1]赵丽,万佳乐.下肢临近关节稳态体感诱发电位的提取和分析[J].中国医学物理学杂志,2022,39(5):572-577.[doi:DOI:10.3969/j.issn.1005-202X.2022.05.009]
　ZHAO Li,WAN Jiale.Extraction and analysis of steady-state somatosensory evoked potentials of adjacent joints of lower limbs[J].Chinese Journal of Medical Physics,2022,39(5):572-577.[doi:DOI:10.3969/j.issn.1005-202X.2022.05.009]
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下肢临近关节稳态体感诱发电位的提取和分析()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
39卷
期数:
2022年第5期
页码:
572-577
栏目:
医学信号处理与医学仪器
出版日期:
2022-05-27

文章信息/Info

Title:
Extraction and analysis of steady-state somatosensory evoked potentials of adjacent joints of lower limbs
文章编号:
1005-202X（2022）05-0572-06
作者:
赵丽; 万佳乐
天津市信息传感与智能控制重点实验室/天津职业技术师范大学自动化与电气工程学院， 天津 300222
Author(s):
ZHAO Li;  WAN Jiale
Tianjin Key Laboratory of Information Sensing and Intelligent Control/School of Automation and Electrical Engineering, Tianjin University of Technology and Education, Tianjin 300222, China
关键词:
稳态体感诱发电位; 电刺激; 频率选择
Keywords:
Keywords: steady-state somatosensory evoked potential electrical stimulation frequency selection
分类号:
R318；TN911.6
DOI:
DOI:10.3969/j.issn.1005-202X.2022.05.009
文献标志码:
A
摘要:
稳态体感诱发电位（SSSEP）在提升运动想象脑机接口分类性能方面有着显著作用，因此如何有效提取SSSEP是研究的重点。为有效提取下肢膝-踝临近关节处的SSSEP，设计体感刺激参数筛选试验，分别采集10名受试者在右腿腘窝和右脚踝内侧处10种不同电刺激频率下的脑电信号，使用快速傅里叶变换、时频图谱和脑地形图进行综合分析。结果显示，受试者在右脚踝内侧的频谱特征优于右腿腘窝，33 Hz为最优刺激频率，能用于下肢的电刺激强度为10~20 mA。
Abstract:
Abstract: Steady-state somatosensory evoked potential (SSSEP) plays a significant role in improving the classification performance of motor imagery brain-computer interface. Therefore, how to effectively extract SSSEP becomes the research focus. In order to effectively extract the SSSEP at the adjacent joints of the knee ankle of the lower limb, a somatosensory stimulation parameters screening test is designed. The EEG signals at the popliteal fossa of the right leg and the medial side of the right ankle in 10 subjects at 10 different electrical stimulation frequencies are collected and analyzed by fast Fourier transform, time-frequency atlas and brain topographic map. The results show that the spectrum characteristics on the medial side of the right ankle are better than those on the popliteal fossa of the right leg. The optimal stimulation frequency is 33 Hz, and the electrical stimulation intensity that can be used for the lower limbs is from 10 to 20 mA.

相似文献/References:

[1]高丹丹,吴宝明,何庆华,等.融合视听觉引导肌电反馈与生物电刺激的新型神经康复仪的研制[J].中国医学物理学杂志,2014,31(04):5085.[doi:10.3969/j.issn.1005-202X.2014.04.024]
[2]雷涛,刘玉红,张煜,等.电刺激对背根神经节和雪旺细胞髓鞘化的影响[J].中国医学物理学杂志,2021,38(10):1285.[doi:DOI:10.3969/j.issn.1005-202X.2021.10.018]
　LEI Tao,LIU Yuhong,ZHANG Yu,et al.Effects of electrical stimulation on the myelination of dorsal root ganglia and Schwann cells[J].Chinese Journal of Medical Physics,2021,38(5):1285.[doi:DOI:10.3969/j.issn.1005-202X.2021.10.018]

备注/Memo

备注/Memo:
【收稿日期】2021-12-15 【基金项目】国家重点研发计划（2017YFB0403802） 【作者简介】赵丽，博士，教授，研究方向：生物医学信号处理、智能信息检测，E-mail: jinshihui@163.com；万佳乐，硕士，研究方向：智能信息处理，E-mail: wanjiale0917@163.com
更新日期/Last Update: 2022-05-27