title: Directional units in the rat optic nerve.
abstract: Single units with directional receptive fields were recorded from the rat optic nerve and thus revealed, in contrast to earlier reports, the presence of at least one class of non-concentric retinal unit in this species. In confirmation of prior work, examples of concentric, surround-dominated and centre-dominated receptive fields were also encountered. In some respects their properties resembled those of either brisk or sluggish classes in the cat retina.
mesh_terms: D000818:Animals; D005071:Evoked Potentials; D009039:Motion Perception / Q000502:physiology*; D009900:Optic Nerve / Q000502:physiology*; D009949:Orientation / Q000502:physiology*; D051381:Rats; D014794:Visual Fields; D014796:Visual Perception / Q000502:physiology