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Time-frequency analysis of red-green visual flickers based on steady-state visual evoked potential recording
Author(s)
Dechwechprasit, Panisa
Phothisonothai, Montri
Tantisatirapong, Suchada
Date Issued
February 21, 2017
Type
Conference Paper
Abstract
The study of brain activity can be done by visual stimulus flickering at specific frequencies, Steady-State Visual Evoked Potential or as known as SSVEP. SSVEP is to stimulate the EEG signal to locate the desired goal of the experiment when a visual stimulus flickering with different constant frequencies and same duration. We aim to present a case study of electroencephalogram (EEG) signal by analyzing the frequency response of the red and green light. The stimulation is based on SSVEP by dividing the trial into two trials: single light and two lights. We considered three parameters that are light color, frequency and epoch interval. The optimal experimental results showed the classification accuracy rate of 74% and 75% for single and two color lights, respectively. The results can be considerably applied to the brain-computer interface (BCI) system.
Citation
Bmeicon 2016 9th Biomedical Engineering International Conference, 2017