Effects of sleep deprivation on gamma oscillation of waking human EEG

This study compares and evaluates the effect of sleep deprivation (SD) on human brain cognition by analyzing the recorded EEG data under normal and 24 h sleep deprived states.EEG auditory event-related potentials were collected from 14 healthy volunteers,and the statistical values of wavelet-transformed EEG in gamma band were decomposed by parallel factor analysis (PARAFAC) to identify where the differences appeared in the time,frequency and spatial domains.The results showed that the changes of brain states caused by SD appeared around 40 Hz at about 400 ms after stimulation on prefrontal and frontal lobes.Negative effects of SD on neuronal activity and oscillation were observed,The analysis of the EEG data by the wavelet transform and PARAFAC can be an integrated way to estimate the change of brain states in the three domains.

作 者： Ning Li Yan Wang Mingshi Wang Haiying Liu   作者單位： Ning Li,Yan Wang,Mingshi Wang(College of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China)

Haiying Liu(College of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China;Department of Radiology, University of Minnesota, Minneapolis, MN 55455, USA) 

刊 名： 自然科學進展（英文版）  SCI 英文刊名： PROGRESS IN NATURAL SCIENCE  年，卷(期)： 2008 18(12)  分類號： N1  關鍵詞： Gamma oscillation   Sleep deprivation   Event-related potential   Wavelet transform   Parallel factor   Neuronal activity  

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