文献类型：期刊文献

英文题名：Neuro-physiological features related to subjective evaluation and performance assessment during sustained mental calculation and rest break

作者：Chen, Lanlan[1,2]; Sugi, Takenao[2]; Shirakawa, Shuichiro[3]; Zou, Junzhong[1]; Nakamura, Masatoshi[2]

机构：[1] Department of Automation, East China University of Science and Technology, China; [2] Department of Advanced Systems Control Engineering, Saga University, Japan; [3] National Center of Neurology and Psychiatry, Japan

年份：2009

卷号：47

期号：2

起止页码：148

外文期刊名：Transactions of Japanese Society for Medical and Biological Engineering

收录：EI(收录号：20100312645510)

语种：英文

外文关键词：Work-rest schedules - Ergonomics - Physiology

摘要：Neuro-physiological measures especially EEG analysis is helpful to understand underlying mechanisms of mental fatigue during sustained mental work. In this research, a work-rest schedule containing mental calculation and music rest break was designed. Neuro-physiological measures were related with subjective evaluation and performance assessment. Individual EEG characteristics and common EEG features were analyzed. It is found that theta and alpha rhythm are highly related with concentration, alertness and drowsy during mental work. Faster EEG frequency bands reflect higher alertness level after taking a rest. Subjective evaluation and performance assessment support EEG findings. The results from subjective evidence and objective evidence indicate that a short break (e.g. 15 min per 2 hrs) in sustained mental work can counteract the accumulation of mental fatigue and improve work efficiency.