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http://dx.doi.org/10.5369/JSST.2003.12.6.289

EEG Analysis for Cognitive Mental Tasks Decision  

Kim, Min-Soo (Dept. of Electronic Eng. Yeungnam Univ.)
Seo, Hee-Don (Dept. of Electronic Eng. Yeungnam Univ.)
Publication Information
Journal of Sensor Science and Technology / v.12, no.6, 2003 , pp. 289-297 More about this Journal
Abstract
In this paper, we propose accurate classification method of an EEG signals during a mental tasks. In the experimental task, subjects achieved through the process of responding to visual stimulus, understanding the given problem, controlling hand motions, and select a key. To recognize the subjects' selection time, we analyzed with 4 types feature from the filtered brain waves at frequency bands of $\alpha$, $\beta$, $\theta$, $\gamma$ waves. From the analysed features, we construct specific rules for each subject meta rules including common factors in all subjects. In this system, the architecture of the neural network is a three layered feedforward networks with one hidden layer which implements the error back propagation learning algorithm. Applying the algorithms to 4 subjects show 87% classification success rates. In this paper, the proposed detection method can be a basic technology for brain-computer-interface by combining with discrimination methods.
Keywords
Electroencephalogram; neural network; BCI(Brain Computer Interface);
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