[Studying psychology test EEG based on information transmission of cerebral cortex].
23 subjects' 8-lead (Fp1, Fp2, Cp3, Cp4, T7, T8, P7, P8) electroencephalogram (EEG) was recorded when they were doing mental arithmetic at four different levels. We calculated the information transmission time series in human cerebral cortex basing on EEG, and the Lempel-Ziv complexity and C1C2 complexity of these time series. When 20 subjects were doing the most difficult mental arithmetic, the information transmission series between lead at left-brain (Cp3, T7, P7) and other leads was of more complexity than others; a light "cross" could be seen after the information transmission matrix was converted to image; when complexity was calculated, the difference was more significant by use of C1 complexity than by other complexity measures.
Mao
Dawei
D
College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China.
Murat
Hamit
H
Tong
Qinye
Q
D002540:Cerebral Cortex / Q000502:physiology*; D004569:Electroencephalography; D006801:Humans; D007361:Intelligence Tests; D012815:Signal Processing, Computer-Assisted; D009435:Synaptic Transmission / Q000502:physiology