Moore Ginger A, Calkins Susan D
Department of Psychology, Duke University, Durham, NC, USA.
Dev Psychol. 2004 Nov;40(6):1068-80. doi: 10.1037/0012-1649.40.6.1068.
The authors investigated relations between mother-infant dyadic coordination and infants' physiological responses. Mothers (N=73) and 3-month-old male and female infants were observed in the still-face paradigm, and mothers' and infants' affective states were coded at 1-s intervals. Synchrony and levels of matching between mother-infant affective states were computed, and infants' heart rate and vagal tone were measured. Infants showed increased negative affect and heart rate and decreased vagal tone during mothers' still-face, indicating physiological regulation of distress. Infants who did not suppress vagal tone during the still-face (nonsuppressors) showed less positive affect, higher reactivity and vagal suppression in normal play and reunion episodes, and lower synchrony in normal play with mothers. The results indicate that infants' physiological regulation in social interaction differs in relation to dyadic coordination of affective behaviors.
作者们研究了母婴二元协调与婴儿生理反应之间的关系。对73名母亲以及3个月大的男婴和女婴进行了静脸范式观察，每隔1秒对母亲和婴儿的情感状态进行编码。计算母婴情感状态之间的同步性和匹配程度，并测量婴儿的心率和迷走神经张力。在母亲静脸期间，婴儿表现出负面情绪增加、心率加快以及迷走神经张力降低，这表明婴儿对痛苦进行了生理调节。在静脸期间未抑制迷走神经张力的婴儿（非抑制者）在正常玩耍和重聚情节中表现出较少的积极情绪、较高的反应性和迷走神经抑制，并且在与母亲的正常玩耍中同步性较低。结果表明，婴儿在社交互动中的生理调节在情感行为的二元协调方面存在差异。
