title: Receptive field properties of directionally selective units in the pigeon's optic tectum.
mesh_terms: D000818:Animals; D001931:Brain Mapping; D010856:Columbidae; D005071:Evoked Potentials; D008027:Light; D009039:Motion Perception; D009474:Neurons / Q000502:physiology; D009899:Optic Lobe, Nonmammalian / Q000502:physiology*; D010786:Photoreceptor Cells / Q000502:physiology*; D012160:Retina / Q000502:physiology*; D014794:Visual Fields