Visual evoked potentials: concomitants of metacontrast in late components.
D000818:Animals; D005074:Evoked Potentials, Visual; D000882:Haplorhini; D006801:Humans; D010470:Perceptual Masking / Q000502:physiology*; D010775:Photic Stimulation; D014793:Visual Cortex / Q000502:physiology