A Practical SSVEP-Based Algorithm for Perceptual Dominance Estimation in Binocular Rivalry

作者：Tanaka Kazuo^*; Tanaka Motoyasu; Kajiwara Toshiya; Wang Hua O

来源：IEEE Transactions on Cognitive and Developmental Systems, 2018, 10(2): 476-482.

DOI：10.1109/TCDS.2017.2679224

• Acceleration of spectrogram difference
• binocular rivalry
• electroencephalogram (EEG)
• steady state visual evoked potentials (SSVEPs)

This paper presents a practical algorithm for perceptual dominance estimation in binocular rivalry. The algorithm using steady state visual evoked potentials (SSVEP) effectively realizes a real-time estimation of perceptual dominance in binocular rivalry from electroencephalogram (EEG) signals. For accuracy of estimation, the algorithm utilizes the EEG spectrogram obtained via the short-time Fourier transformation with a short time analysis window. More importantly, the algorithm focuses on the acceleration (second-order time differential) of the spectrogram difference between SSVEP of left-eye stimulus and that of right-eye stimulus, where the left-eye stimulus and the right-eye stimulus are separately displayed for left-eye and right-eye, respectively, with different-flashing-frequency visual stimuli of dissimilar images. Experimental results demonstrate the utility of the algorithm, particularly, the importance of introducing the acceleration of the spectrogram difference. With the simplicity of the algorithm, it is in fact suitable to accurately measure binocular rivalry without verbal communications in real-time environments.

• 出版日期2018-6