Research Article
A Fundamental Study of Objective Color Blindness Evaluation Based on Brain Waves
@INPROCEEDINGS{10.1007/978-3-032-38657-1_15, author={Takumu Kobayashi and Masaki Ohashi and Akitoshi Itai}, title={A Fundamental Study of Objective Color Blindness Evaluation Based on Brain Waves}, proceedings={Body Area Networks. 20th EAI International Conference, BodyNets 2025, Okayama, Japan, December 2--4, 2025, Proceedings}, proceedings_a={BODYNETS}, year={2026}, month={10}, keywords={Color vision SSVEP EEG}, doi={10.1007/978-3-032-38657-1_15} }- Takumu Kobayashi
Masaki Ohashi
Akitoshi Itai
Year: 2026
A Fundamental Study of Objective Color Blindness Evaluation Based on Brain Waves
BODYNETS
Springer
DOI: 10.1007/978-3-032-38657-1_15
Abstract
The color vision deficiency slightly affects daily living. The evaluation of color blindness is typically conducted through a subjective assessment that utilizes color papers and color blocks. Therefore, the development of an effective and objective evaluation method for color blindness is desired. Now we focus on the estimation of personal characteristics using electroencephalogram (EEG) recorded from wireless electroencephalograph. EEG includes various components generated by vision, sound, attention, liking, and so on. Various researches are reported which estimates the human state from EEG that reflects visual information such as a visual evoked potential (VEP) and event-related potential (ERP). Steady-State Visually Evoked Potentials (SSVEP) is known as one of VEP evoked by gazing at a constant period of light flashes or flickering of checkerboard color pattern. The amount of SSVEP reflects a brightness, contrast, flashing frequency of flickering checkerboard. On the other hand, Kaneko showed the process of color information recognition in the human brain by changing the colors of checkerboard patterns. Results showed that the amount of SSVEP depends on the color combination of the checkerboard. Moreover, the amount of SSVEP was strongly related to color vision of the subject. These facts represent the SSVEP is a biological information which reflects color perception. If visual stimuli that induce different SSVEP depending on color recognition, a difference of color vision could be estimated. In this paper, we propose visual stimuli to evaluate color blindness using SSVEP.