文献类型：会议论文

英文题名：Investigation of Mental Fatigue Induced by a Continuous Mental Arithmetic Task Based on EEG Coherence Analysis

作者：Chen, Lanlan[1];Zhao, Yu[1];Zhang, Jian[1];Zou, Junzhong[1]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Adv Control & Optimizat Chem Proc, Shanghai 200237, Peoples R China

会议论文集：International Conference of Life System Modeling and Simulation (LSMS) / International Conference on Intelligent Computing for Sustainable Energy and Environment (ICSEE)

会议日期：SEP 20-23, 2014

会议地点：Shanghai, PEOPLES R CHINA

语种：英文

外文关键词：mental fatigue; continuous mental arithmetic task; EEG signals; coherence analysis

摘要：In the present study, twelve volunteers were participated in a 2 h continuous mental arithmetic task without any break, which was designed to induce mental fatigue. The negative influence was investigated through EEG coherence, which was used as a measure of synchronization of different underlying brain regions. It was observed that the sustained mental task led to increased EEG coherence, which did not result in more efficient performance. The change of EEG coherence was widespread not limited to specific brain regions or frequency bands. The variation of EEG coherence combined with behavior performance validated the impact of mental fatigue caused by a continuous mental task.