Journal
BRAIN RESEARCH
Volume 1580, Issue -, Pages 124-132Publisher
ELSEVIER
DOI: 10.1016/j.brainres.2013.10.052
Keywords
Oxyctocin; Vasopressin; Parenting; Synchrony; Social behavior
Categories
Funding
- German-Israeli Science Foundation [1114-101.4/2010]
- I-CORE program of the planning and budgeting committee
- Irving B. Harris Foundation
- US-Israeli Bi-National Science Foundation
- Israel Science Foundation [51/11]
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Social synchrony - the coordination of behavior between interacting partners during social contact - is learned within the parent-infant bond and appears in a unique form in mothers and fathers. In this study, we examined hormonal effects of OT and AVP on maternal and paternal behavioral patterns and detail the processes of parent-infant social synchrony as they combine with hormonal activity. Participants included 119 mothers and fathers (not couples) and their 4-6 month-old infants. Baseline OT and AVP were collected from parents and a 10-minute face-to-face interaction with the infant was filmed. Interactions were micro-coded for parent-child contact, social signals, and social- versus-object focused play. Proportions and lag-sequential patterns of social behaviors were computed. Mothers provided more affectionate contact, while fathers provided more stimulatory contact. Parents with high OT levels displayed significantly more affectionate contact compared to parents with low OT and constructed the interaction towards readiness for social engagement by increasing social salience in response to infant social gaze. In contrast, parents with high AVP engaged in stimulatory contact and tended to increase object-salience when infants showed bids for social engagement. OT levels were independently predicted by the amount of affectionate contact and the durations of gaze synchrony, whereas AVP levels were predicted by stimulatory contact, joint attention to objects, and the parent increasing object salience following infant social gaze. Results further specify how synchronous bio-behavioral processes with mother and father support the human infant's entry into the family unit and prepare the child for joining the larger social world. This article is part of a Special Issue entitled Oxytocin and Social Behav. (C) 2013 Elsevier B.V. All rights reserved.
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