Color vision function test method based on visual evoked potential

Abstract

A color vision function test method based on visual evoked potential comprises: designing red-green rollover stimulating paradigms, designing a stimulating paradigm red-green brightness ratio gradient, setting up a brain-computer interface platform, presenting the stimulating paradigms, testing through SSVEP (steady-state visually evoked potential) color vision quantification, and feeding back theresults of color vision test. A series of SSVEP paradigms of different red-green brightness contrasts are designed herein; corresponding color vision qualitative and quantitative judgment indexes areprovided; an objective quantitative measuring method is provided for color vision function test in ophthalmologic examination.

Description

technical field

[0001] The invention relates to the technical field of brain-computer interface and color vision function inspection, in particular to a color vision function inspection method based on visual evoked potentials. Background technique

[0002] Human color vision is mainly determined by three types of cone cells on the retina, and the absorption peaks of the three types of cone cells are long wavelength (L), medium wavelength (M) and short wavelength (S). Abnormalities in the cone cells cause color vision deficits, which occur in 8% of men and 0.5% of women. In general, abnormal color vision is divided into three types: abnormal trichromatic vision (color weakness), dichromatic vision (color blindness) and panchromatic blindness. Among them, color weakness can be subdivided into red weakness, green weakness and blue weakness. Color blindness can be subdivided into protanopia, deuteranopia and tritanopia.

[0003] Traditional color vision testing mainly includ...

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