The visual evoked response obtained with an alternating barred pattern: rate, spatial frequency and wave length.
D000328:Adult; D003116:Color; D005071:Evoked Potentials; D005556:Form Perception; D006801:Humans; D008027:Light; D008297:Male; D011199:Potentiometry; D012160:Retina / Q000502:physiology; D013997:Time Factors; D014793:Visual Cortex / Q000502:physiology*