標題: | Identifying changes in EEG information transfer during drowsy driving by transfer entropy |
作者: | Huang, Chih-Sheng Pal, Nikhil R. Chuang, Chun-Hsiang Lin, Chin-Teng 電控工程研究所 腦科學研究中心 Institute of Electrical and Control Engineering Brain Research Center |
關鍵字: | drowsy driving;EEG;effective connectivity;transfer entropy;driving performance |
公開日期: | 23-十月-2015 |
摘要: | Drowsy driving is a major cause of automobile accidents. Previous studies used neuroimaging based approaches such as analysis of electroencephalogram (EEG) activities to understand the brain dynamics of different cortical regions during drowsy driving. However, the coupling between brain regions responding to this vigilance change is still unclear. To have a comprehensive understanding of neural mechanisms underlying drowsy driving, in this study we use transfer entropy, a model-free measure of effective connectivity based on information theory. We investigate the pattern of information transfer between brain regions when the vigilance level, which is derived from the driving performance, changes from alertness to drowsiness. Results show that the couplings between pairs of frontal, central, and parietal areas increased at the intermediate level of vigilance, which suggests that an enhancement of the cortico-cortical interaction is necessary to maintain the task performance and prevent behavioral lapses. Additionally, the occipital-related connectivity magnitudes monotonically decreases as the vigilance level declines, which further supports the cortical gating of sensory stimuli during drowsiness. Neurophysiological evidence of mutual relationships between brain regions measured by transfer entropy might enhance the understanding of cortico-cortical communication during drowsy driving. |
URI: | http://dx.doi.org/10.3389/fnhum.2015.00570 http://hdl.handle.net/11536/129415 |
ISSN: | 1662-5161 |
DOI: | 10.3389/fnhum.2015.00570 |
期刊: | FRONTIERS IN HUMAN NEUROSCIENCE |
Volume: | 9 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |