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P300 speller is a traditional brain computer interface paradigm and focused by lots of current BCI researches. In this paper a support vector machine based recursive feature elimination method was adapted to select the optimal channels for character recognition. The margin distance between target and nontarget stimulus in feature space was evaluated by training SVM classifier and then the features...
Driving fatigue is the most dangerous killer on the highway. Supervising mental vigilance is able to warn the driver and avoid some disasters. The current study mainly focuses on the power spectrum. The electroencephalography (EEG) activities in the δ(0-4 Hz), θ(4-8 Hz), α(8-13 Hz) and β(13-35Hz) bands, reflect the change of the physiological vigilance. The ratios of (θ + α)/β, α/β, (θ + α)/(α + β),...
Emotion perception similar to thinking, learning and remembering is consequent of complicated brain processes which are related to specific biological metabolism. Different human's emotional states are recognizable by measuring and interpreting of human physiological signals. Bio-sensors possess a number of advantages against other emotion recognition methods as they are relatively more consistent...
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