An Auto-Reference,Auto-Correlation and Adaptive Interference Cancellation Theories and Techniques (AAA-ICT) Used to the Single Trial of Slow Cortical Auditory Evoked Potentials

摘要：

An auto-reference,auto-correlative and adaptive interference cancellation theories and techniques (AAAICT) used in the single trial of Slow cortical auditory Evoked Potentials (SCAEP,including the P1-N1-P2) was proposed on the basis of analyzing the defects of traditional averaging theory for extracting evoked potential,knowing of the characteristic of spontaneous electroencephalo-signal (S-EES) and the special environment of extracting evoked potential (EP).The segment of reference signal,which has the best correlation with evoked electroencephalo-signal (E-EES),was obtained according to the method of calculating the sliding correlation point by point between E-EES and reference signal,and then,the cancellation factor between E-EES and the most correlative reference signal segment was derived by the least square method (LSM),at last,single trial of FVEP was acquired by interference cancellation.

关键词： Slow cortical auditory EPs Single trial Autoreference auto-correlation adaptive interference cancellation Multi-media sound technique

作者: Zhengxiang Xie Hong Li Zhifang Wang Ying Wang Yuhong Liu

作者单位: The Department of Biomedical Engineering in Chongqing Medical University,Chongqing,China

会议类型: 国际会议

会议名称: 7th Asian-Pacific Conference on Medical and Biological Engineering(第七届亚太地区生物工程学术会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-04-22（万方平台首次上网日期，不代表论文的发表时间）