清华大学学报(英文版)
清華大學學報(英文版)
청화대학학보(영문판)
TSINGHUA SCIENCE AND TECHNOLOGY
2001年
5期
503-508
,共6页
洪波%杨福生%潘映辐%唐庆玉%陈奎%铁艳梅
洪波%楊福生%潘映輻%唐慶玉%陳奎%鐵豔梅
홍파%양복생%반영복%당경옥%진규%철염매
independent component analysis%pattern-reversal visual evoked potential (PVEP)%single trial estimation%P100 peak1
A novel method based on the extended infomax approach of independent component analysis (ICA) is proposed for the single-trial estimation of multi-channel pattern-reversal visual evoked potential (PVEP). The clinical applications illustrate the encouraging performance of the method. The number of trials needed is reduced to 3, but the estimated VEP complex is clearer than that obtained by conventional ensemble averaging with 50 trials. By analyzing the time course and spatial pattern of the independent components (ICs) of the multi-channel PVEP, one component is found to be reasonably related to the P100 peak.
