title: An analysis of retinal receptor orientation. 3. Results of initial psychophysical tests.
mesh_terms: D006801:Humans; D008266:Macula Lutea; D008433:Mathematics; D009949:Orientation; D010786:Photoreceptor Cells; D011601:Psychophysics; D011680:Pupil; D012160:Retina / Q000294:innervation*; D014785:Vision, Ocular; D014796:Visual Perception