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首页> 外文期刊>Developmental psychobiology. >Spontaneous facial motility in infancy: a 3D kinematic analysis.
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Spontaneous facial motility in infancy: a 3D kinematic analysis.

机译：婴儿期自发性面部运动：3D运动学分析。

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摘要

Early spontaneous orofacial movements have rarely been studied experimentally, though the motor experiences gained from these behaviors may influence the development of motor skills emerging for speech. This investigation quantitatively describes developmental changes in silent, spontaneous lip and jaw movements from 1 to 12 months of age using optically based 3D motion capture technology. Twenty-nine typically developing infants at five ages (1, 5, 7, 9, and 12 months) were studied cross-sectionally. Infants exhibited spontaneous facial movements at all ages studied. Several age-related changes were detected in lip and jaw kinematics: the occurrence of spontaneous movements increased, movement speed increased, the duration of movement epochs decreased and movement coupling among different facial regions increased. Additionally, evidence for stereotypic movements was not strong. The present findings suggest that, during the first year of life, early spontaneous facial movements undergo significant developmental change in the direction of skill development for speech.
机译：尽管从这些行为中获得的运动经验可能会影响说话时运动技能的发展，但很少通过实验研究早期自发的口腔运动。这项研究定量地描述了使用基于光学的3D运动捕捉技术，从1到12个月大时无声，自发性嘴唇和下巴运动的发展变化。横断面研究了29例5个年龄段（1、5、7、9和12个月）的发育中婴儿。在所有研究的年龄阶段，婴儿均表现出自发的面部运动。嘴唇和颌骨运动学上发现了几个与年龄有关的变化：自发运动的发生增加，运动速度增加，运动历时的持续时间减少以及不同面部区域之间的运动耦合增加。此外，刻板印象运动的证据并不充分。目前的发现表明，在生命的第一年中，早期自发的面部运动在语音技能发展方向上发生了显着的发展变化。

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