Single fibers of cat optic nerve: "thresholds" to light.
D000818:Animals; D002415:Cats; D066298:In Vitro Techniques; D008027:Light; D009474:Neurons / Q000502:physiology* / Q000528:radiation effects*; D009900:Optic Nerve / Q000502:physiology* / Q000528:radiation effects*; D011603:Psychophysiology