持续作业对额叶脑电近似熵的影响

摘要

Objective To explore the effect of sustained performance on EEG approximate entropy (ApEn).Methods Fifty participants were divided into two groups according to whether they had undergone sustained performance .One day af-ter the sustained-performance group finished executing their task , the resting EEG of nine electrodes ( F3, Fz, F4, C3, Cz, C4, P3, Pz and P4) was acquired in two grups separately , and the ApEn of each electrode was calculated as well . Results The ApEn of F3 and Fz showed an evident decrease as well as randomness of spontaneous brain electrode activity in frontal lobes , especially in the left one .Conclusion The drop of ApEn and the asymmetry of frontal lobes might reflect participants′state of fatigue during sustained performance .%目的：研究持续作业对脑电近似熵（ approximate entropy ， ApEn）的影响。方法50名受试对象依据是否参加持续作业任务分为两组，在持续作业组结束相关任务后1 d，对两组受试对象分别采集F3、Fz、F4、C3、Cz、C4、P3、Pz、P4共9个导联的静息态脑电数据，并分别计算两组各个导联ApEn值。结果持续作业组F3、Fz导联ApEn值呈现显著下降，额叶自发脑电活动的无序性降低，并且以左侧额叶降低明显。结论 ApEn值的下降及左右额叶的不对称性可能反映持续作业中受试对象的疲劳状态。