title: DISCRIMINATION OF BROKEN CIRCLES BY NORMAL AND X-RADIATED MONKEYS.
mesh_terms: D000818:Animals; D004193:Discrimination Learning; D005556:Form Perception; D000882:Haplorhini; D011830:Radiation Effects; D012106:Research
keywords: DISCRIMINATION LEARNING; EXPERIMENTAL LAB STUDY; FORM PERCEPTION; MONKEYS; RADIATION EFFECTS