標題: EEG-Based assessment of driver cognitive responses in a dynamic virtual-reality driving environment
作者: Lin, Chin-Teng
Chung, I-Fang
Ko, Li-Wei
Chen, Yu-Chieh
Liang, Sheng-Fu
Duann, Jeng-Ren
資訊工程學系
電控工程研究所
腦科學研究中心
Department of Computer Science
Institute of Electrical and Control Engineering
Brain Research Center
關鍵字: cognitive state;event-related potential;fuzzy neural network;independent component analysis;principle component analysis;temporal filter;virtual reality
公開日期: 1-七月-2007
摘要: Accidents caused by errors and failures in human performance among traffic fatalities have a high death rate and become an important issue in public security. They are mainly caused by the failures of the drivers to perceive the changes of the traffic lights or the unexpected conditions happening accidentally on the roads. In this paper, we devised a quantitative analysis for assessing driver's cognitive responses by investigating the neurobiological information underlying electroencephalographic (EEG) brain dynamics in traffic-light experiments in a virtual-reality (VR) dynamic driving environment. The VR technique allows subjects to interact directly with the moving virtual environment instead of monotonic auditory and visual stimuli, thereby provides interactive and realistic tasks without the risk of operating on an actual machine. Independent component analysis (ICA) is used to separate and extract noise-free ERP signals from the multi-channel EEG signals. A temporal filter is used to solve the time-alignment problem of ERP features and principle component analysis (PCA) is used to reduce feature dimensions. The dimension-reduced features are then input to a self-constructing neural fuzzy inference network (SONFIN) to recognize different brain potentials stimulated by red/green/yellow traffic events, the accuracy can be reached 87% in average eight subjects in this visual-stimuli ERP experiment. It demonstrates the feasibility of detecting and analyzing multiple streams of ERP signals that represent operators' cognitive states and responses to task events.
URI: http://dx.doi.org/10.1109/TBME.2007.891164
http://hdl.handle.net/11536/10595
ISSN: 0018-9294
DOI: 10.1109/TBME.2007.891164
期刊: IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
Volume: 54
Issue: 7
起始頁: 1349
結束頁: 1352
顯示於類別:期刊論文


文件中的檔案:

  1. 000247390700020.pdf