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Direct linkHe, Jie; Hane, Amie Ashley; Degnan, Kathryn Amey; Henderson, Heather A.; Xu, Qinmei; Fox, Nathan A. – Infancy, 2013
We examined two aspects of temperamental approach in early infancy, positive reactivity and anger, and their unique and combined influences on maternal reports of child surgency and attention focusing at 4 years of age. One hundred and fourteen infants were observed for their positive reactions to novel stimuli at 4 months, and their anger…
Descriptors: Infant Behavior, Infants, Mothers, Psychological Patterns
Peer reviewedStifter, Cynthia A.; Fox, Nathan A. – Developmental Psychology, 1990
Longitudinal data indicated a significant relation between five-month vagal tone and negative reactivity elicited in the laboratory and maternal ratings of activity level and smiling behavior. Newborn vagal tone predicted maternal ratings of frustration and fear. Moderate stability was found for infant reactivity. (RH)
Descriptors: Age Differences, Heart Rate, Infant Behavior, Infants
