Development of the place principle.
D000375:Aging; D000818:Animals; D001306:Auditory Pathways / Q000502:physiology; D001307:Auditory Perception / Q000502:physiology*; D001489:Basilar Membrane / Q000502:physiology*; D002642:Chick Embryo; D002645:Chickens; D007758:Ear, Inner / Q000502:physiology*