Faculty of Human Sciences, Waseda University, Japan.
Infant Behav Dev. 2010 Feb;33(1):68-78. doi: 10.1016/j.infbeh.2009.11.001. Epub 2009 Dec 28.
The holding of 465 Japanese infants by their mothers was longitudinally observed at 4 and 9 months with several checkups and questionnaires of physical and psychological development and child-care attitude in a larger longitudinal study of mother-child relationships. A left side bias in holding was significant for the 4-month-old infants. The infants' increased autonomy in their ability to adopt a posture at 9 months weakened the holding bias. The mothers' handedness was related to different right/left hand contact patterns, but it was significant only for holding on the left side. The infants' reflexes relating to posture did not correlate with the holding bias at 4 months. The meaning and possible determinants of holding laterality are discussed.
在一项关于母婴关系的大型纵向研究中，对 465 名日本婴儿的母亲进行了 4 个月和 9 个月的纵向观察，期间进行了多次体格和心理发育检查以及育儿态度问卷调查。4 个月大的婴儿在抱持时存在明显的左侧偏好。9 个月大时，婴儿在姿势方面的自主能力增强，削弱了抱持偏好。母亲的利手与不同的右手/左手接触模式有关，但仅在左侧抱持时具有显著性。4 个月大时，与姿势相关的婴儿反射与抱持偏好无关。讨论了抱持偏侧性的意义和可能决定因素。
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