The regulation of negative reactivity in infancy: Function and development.

Abstract

This study examined the function and effectiveness of certain behaviors in regulating negative arousal in 5- and 10-month-old infants. Infants participated in an arm restraint procedure at 5 months (N=87) and a toy removal task at 10 months (N=82). Negative reactivity and regulatory behaviors ― avoidance, orienting, self-comforting, and communicative behaviors (10-month only) ― were coded and sectioned into 10-s epochs. Results showed that self-comforting behaviors were preferred at both 5 and 10 months of age. A comparison of changes in negative reactivity across every 2 consecutive 10-s epochs (decreasers vs. increasers vs. no change) revealed self-conforting behaviors to be exhibited most often during periods of decreasing negative arousal. Orienting behaviors also appeared to serve a regulatory function but in a more limited way. Finally, under these circumstances, avoidance and communicative behaviors were exhibited most often during increasing distress

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