Fig. 6: A stimulus edge can induce OS responses irrespective of their location in the visual field.

a Schematic of recording setup. b Lines of preferred orientations of all LGN OS cells plotted on their receptive field center. Color legend is shown below with two schematics of vertical and horizontal gratings. Dashed lines mark 5° from the screen borders. c Distribution of preferred orientations of all OS units located in different areas of the visual field shown above: (1) within 5° of the vertical edge (pink), (2) within 5° of the horizontal edge (purple), (3) in the remaining central screen (dark gray) or (4) between azimuths −5 and 0° (light gray). d Distribution of preferred orientations like in Fig. 5d but only for units with a receptive field in the central area of the screen (from c; gray). n indicates number of OS units from central screen out of all OS units with receptive fields. e Schematic of recording setup where the screen’s edge is located at azimuth 0° (compared to azimuth −47° as in (a–d). The 5° threshold is marked. f Like (b) for experimental setup shown in (e). Gray shaded area encompasses azimuths −5°− 0°. g Preferred axes of OS units with receptive fields located between azimuths −5° and 0° (within 5° of stimulus edge; from (e, f); compare to the same area in visual space shown in (b), (c) (light gray, no edge present)). P posterior, A anterior, S superior, I inferior.