title: A study of visual orientation mechanisms in turtles and guinea pigs.
mesh_terms: D000818:Animals; D005133:Eye Movements; D006168:Guinea Pigs / Q000502:physiology*; D006185:Habituation, Psychophysiologic; D009039:Motion Perception; D009949:Orientation; D012160:Retina / Q000502:physiology*; D012193:Reversal Learning; D013045:Species Specificity; D014426:Turtles / Q000502:physiology*