Retinal detector activity in frogs behaving freely.
D000818:Animals; D001001:Anura; D004594:Electrophysiology; D005133:Eye Movements; D009039:Motion Perception; D009068:Movement; D011187:Posture; D011896:Rana temporaria; D012160:Retina / Q000502:physiology*; D003336:Tectum Mesencephali / Q000502:physiology*; D014796:Visual Perception