Hongqiang Yu, Xin Zhao, Ning Li, Mingshi Wang, Peng Zhou
| journal ISSN: | 1002-0071 |
| DOI | 10.1016 / j.pnsc.2008.11.015 |
Tau qhov twg los
Kev kawm hauv Ntuj Nruab Nrab: Cov Ntaub Ntawv Thoob Ntiaj Teb > 2009 > 19 > 10 > 1383-1387
Abstract
Peb tau soj ntsuam qhov tshwm sim ntawm kev siv Internet ntau dhau ntawm lub sijhawm – cov yam ntxwv ntawm lub tshuab hluav taws xob (electroencephalogram) los ntawm wavelet hloov pauv thiab tsis-tsis qhov tsis zoo matrix factorization (NMF). Qhov kev tshwm sim ntsig txog lub peev xwm (ERP) ntawm cov ncauj lus ib txwm muaj thiab cov neeg siv Is Taws Nem ntau dhau los nrhiav kev siv cov kev twv thim sib luag. Peb thov lub wavelet hloov pauv thiab cov kev tshwm sim ntsig txog cov teeb meem tsom rau ERP kom thiaj li rho tawm lub sijhawm – qhov tseem ceeb. F-kev txheeb cais cov sijhawm ntawm lub sijhawm – zaus qhov tseem ceeb tau tom qab ntawd tau faib ua ob ntu los ntawm NMF. Kev siv Is Taws Nem ntau dhau los ua rau P300 qhov loj me zuj zus (P <0.05) thiab qhov nce siab ntawm P300 latency (P <0.05) hauv txhua qhov hluav taws xob. Cov kev cuam tshuam loj ntawm kev siv Internet ntau dhau ntawm gamma oscillation tshwm sim ntawm ∼300ms tom qab stimuli ntawm 40–50Hz ntawm thaj chaw parietal central. Yog li, cov ntaub ntawv no qhia tias kev siv Is Taws Nem ntau dhau cuam tshuam cov ntaub ntawv coding thiab kev koom ua ke hauv lub hlwb.
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