ROSENBERG, S Searching behavior in the retarded as a function of stimulus exposure conditions and IQ. [electronic resource] - American journal of mental deficiency May 1961 - 749-52 p. digital Publication Type: Journal Article ISSN: 0002-9351 Subjects--Topical Terms: AnimalsAppetitive BehaviorHumansIntellectual Disability--psychologyIntelligence TestsVisual Perception