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Time-frequency based coherence analysis of red and green flickering visual stimuli for EEG-controlled applications
Author(s)
Tantisatirapong, Suchada
Dechwechprasit, Panisa
Senavongse, Wongwit
Phothisonothai, Montri
Date Issued
March 23, 2017
Type
Conference Paper
Abstract
The stimulus flickering at specific frequencies, or as known as steady-state visually evoked potential (SSVEP), can be recorded on an occipital area of the brain. SSVEP is used to interpret the EEG signal to detect the desired goal of the experiment. In this paper, we aim to investigate SSVE signal by means of magnitude-squared coherence (MSC) analysis between the red and green visual stimuli. In the experimental paradigm, we considered two parameters that are chromatic color and flickering frequency where an epoch interval was 10 seconds. The obtained results showed the statistically significant frequency-domain response and its maximum MSC coefficient in the theta and alpha bands for green and red flickers, respectively.
Citation
2017 9th International Conference on Knowledge and Smart Technology Crunching Information of Everything Kst 2017, 279-283, 2017