Abstract
Thirty-nine albino rats from four litters were assigned to one of four groups according to a table of random numbers. The treatments consisted of handling, shock, and two appropriate control situations and were administered from 7–21 days of age. Measures of mobility, defecation, and sensitivity to electric shock, taken at ages 71–74 days, revealed that handled Ss were more sensitive to differences in electric shock intensity than their non-handled controls, while shocked Ss were significantly more emotional than all other groups.
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1. Submitted in partial fulfillment of M.S. degree from the University of Southern Mississippi, 1966. The author is indebted to Dr. Harry R. Barker for advice and encouragement.
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May, J.G. The effects of infantile experience on later emotionality and sensory discrimination. Psychon Sci 9, 29–30 (1967). https://doi.org/10.3758/BF03330743
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DOI: https://doi.org/10.3758/BF03330743