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Sullivan, Margaret W.; Lewis, Michael – Infancy, 2012
Infants and their mothers participated in a longitudinal study of the sequelae of infant goal-blockage responses. Four-month-old infants participated in a standard contingency learning and goal-blockage procedure during which anger and sad facial expressions to the blockage were coded. When infants were 12 and 20 months old, mothers completed a…
Descriptors: Psychological Patterns, Males, Infants, Mothers