title: Nonlinear property of the visual system at fusion.
abstract: The response of the visual system to intermittent stimulation at rates above the fusion point is generally considered to be independent of frequency, that is, linear with respect to time-average luminance. However, trains of 1000 light pulses per second alternated successively with trains of 500 light pulses per second may be perceived as flickering even though the time-average luminance is the same in each train.
mesh_terms: D005425:Flicker Fusion; D006801:Humans; D008027:Light; D009132:Muscles; D014785:Vision, Ocular
keywords: FLICKER FUSION