期刊
BIOLOGICAL PSYCHOLOGY
卷 102, 期 -, 页码 118-129出版社
ELSEVIER
DOI: 10.1016/j.biopsycho.2014.07.014
关键词
Brain-computer interface; EEG; P300; Alpha; Mental workload; Fatigue
资金
- European ICT Program Project [FP7-288566]
- Deutsche Forschungsgemeinschaft (DFG) [RTG 1252/1]
The study aimed at revealing electrophysiological indicators of mental workload and fatigue during prolonged usage of a P300 brain-computer interface (BCI). Mental workload was experimentally manipulated with dichotic listening tasks. Medium and high workload conditions alternated. Behavioral measures confirmed that the manipulation of mental workload was successful. Reduced P300 amplitude was found for the high workload condition. Along with lower performance and an increase in the subjective level of fatigue, an increase of power in the alpha band was found for the last as compared to the first run of both conditions. The study confirms that a combination of signals derived from the time and frequency domain of the electroencephalogram is promising for the online detection of workload and fatigue. It also demonstrates that satisfactory accuracies can be achieved by healthy participants with the P300 speller, despite constant distraction and when pursuing the task for a long time. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据