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. 1997 Feb;68(1):139-43.

Temperament and the reactions to unfamiliarity

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  • PMID: 9084130

Temperament and the reactions to unfamiliarity

J Kagan. Child Dev. 1997 Feb.

Abstract

The behavioral reactions to unfamiliar events are basic phenomena in all vertebrates. Four-month-old infants who show a low threshold to become distressed and motorically aroused to unfamiliar stimuli are more likely than others to become fearful and subdued during early childhood, whereas infants who show a high arousal threshold are more likely to become bold and sociable. After presenting some developmental correlates and trajectories of these 2 temperamental biases, I consider their implications for psychopathology and the relation between propositions containing psychological and biological concepts.

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