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

作者：Xie Zhengxiang^*; Li Hong; Wang Zhifang; Wang Ying; Liu Yuhong

来源：7th Asia-Pacific Conference on Medical and Biological Engnieering, 2008-04-22 to 2008-04-25.

• Slow cortical auditory EPs
• Single trial
• Auto-reference
• auto-correlation
• adaptive interference cancellation
• Multi-media sound technique

An auto-reference, auto-correlative and adaptive interference cancellation theories and techniques (AAA-ICT) 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.

• 出版日期2008
• 单位重庆医科大学