title: Ontogeny of persistence: immediate extinction effects in preweanling and weanling rats.
mesh_terms: D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D003216:Conditioning, Operant; D005108:Extinction, Psychological; D007266:Inhibition, Psychological; D051381:Rats; D012055:Reinforcement Schedule; D013997:Time Factors; D014886:Weaning