Static perimetric technique believed to test receptive field properties. I. Extension of Westheimer's experiments on spatial interaction.
D000221:Adaptation, Ocular; D005374:Filtration; D006801:Humans; D008722:Methods; D009431:Neural Conduction; D009900:Optic Nerve / Q000502:physiology; D011581:Psychological Tests; D012160:Retina / Q000502:physiology*; D058609:Visual Field Tests / Q000295:instrumentation; D014794:Visual Fields; D014796:Visual Perception