title: Some unresolved issues concerning the optic tectum.
mesh_terms: D000818:Animals; D001001:Anura; D001288:Attention / Q000502:physiology; D002415:Cats; D006224:Cricetinae; D005399:Fishes; D000882:Haplorhini; D009949:Orientation / Q000502:physiology; D010364:Pattern Recognition, Visual / Q000502:physiology; D013028:Space Perception / Q000502:physiology; D013477:Superior Colliculi / Q000502:physiology*; D014418:Tupaiidae; D014795:Visual Pathways