title: Effects of variations in volume of sucrose and water on persistence of nonreinforced performance in the white rat.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D003216:Conditioning, Operant; D004193:Discrimination Learning; D005108:Extinction, Psychological; D005260:Female; D005502:Food; D009042:Motivation; D009994:Osmolar Concentration; D051381:Rats; D011919:Rats, Inbred Strains; D011930:Reaction Time; D012201:Reward; D013395:Sucrose; D013649:Taste; D014867:Water
chemical_list: D014867:Water; D013395:Sucrose