Work

Brain-computer interface-based assessment of color vision

Year: 2021

Type: article

Abstract: Objective. Present methods for assessing color vision require the person’s active participation. Here we describe a brain-computer interface-based method for assessing color vision that does not require the person’s participation. Approach. This method uses steady-state visual evoked potentials to identify metamers—two light sources that have different spectral distributions but appear to the person to be the same color. Main results. We demonstrate that: minimization of the visual evoked potential elicited by two flickering light sources identifies the metamer; this approach can distinguish people with color-vision deficits from those with normal color vision; and this metamer-identification process can be automated. Significance. This new method has numerous potential clinical, scientific, and industrial applications.

Source: Journal of Neural Engineering

DOI: 10.1088/1741-2552/ac3264

Authors: James J S Norton, Grace F DiRisio, Jonathan S Carp, Amanda E Norton, Nicholas S Kochan, Jonathan R Wolpaw