title: The grain of visual space.
authors: Department of Molecular and Cell Biology, University of California 94720.
authors: G
authors: G
authors: Westheimer
mesh_terms: D006801:Humans; D010775:Photic Stimulation; D012160:Retina / Q000502:physiology; D013028:Space Perception / Q000502:physiology*; D014792:Visual Acuity / Q000502:physiology; D014793:Visual Cortex / Q000502:physiology