title: Retino-geniculate convergence and the analysis of contrast.
mesh_terms: D000221:Adaptation, Ocular; D000818:Animals; D002415:Cats; D003623:Dark Adaptation; D005829:Geniculate Bodies / Q000502:physiology*; D009474:Neurons / Q000502:physiology; D012160:Retina / Q000502:physiology*