A sensitization effect with rectilinear stimuli.
D000328:Adult; D005584:Fovea Centralis / Q000502:physiology; D006801:Humans; D008297:Male; D010783:Photometry; D012399:Rotation; D012858:Size Perception / Q000502:physiology; D014793:Visual Cortex / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*