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Download full textMillar, W. Stuart; Schaffer, H. Rudolph – 1972
Six- and nine-month-old infants were exposed to contingent or non-contingent perceptual stimulation from a source which was spatially displaced at 60 from the infant's midline. Reliable operant acquisition was observed in the case of the nine-month-old infants, but not in the case of the six-month-old infants whose performance was similar to that…
Descriptors: Cognitive Development, Infant Behavior, Object Manipulation, Operant Conditioning
