Developmental differences in infants' use of an object's shape to grasp it securely.
Developmental differences in infants' use of an object's shape to grasp it securely.
复制标题
婴儿利用物体形状来牢固地抓握物体的能力存在发育差异。
DOI：
10.1002/dev.20280
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发表时间：
2008
影响因子：
2.2
通讯作者：
Needham,Amy
中科院分区：
文献类型：
--
作者：
Barrett,TracyM;Needham,Amy
本研究考察了22名11个月和13个月大的婴儿对两个物体（一个对称物体和一个不对称物体）的接近和抓握，以了解婴儿使用形状信息来规划运动动作。在第一次接触时，所有的婴儿抓住不对称的物体比对称的物体更远离它的质心。此外，研究结果还强调了婴儿纠正不稳定手放置的能力、保持对物体的控制而不掉落的能力、获得物体的策略以及抓握物体的灵活性方面的发展差异。年龄较大的婴儿在上述每个领域都表现出更有效的技能。我们的理解的视觉信息的处理行动的发展的影响进行了讨论。© 2007 Wiley Periodicals，Inc. Dev Psychobiol 50：97-106，2008.
This study examined twenty two 11‐ and 13‐month‐old infants' approach and grasp of two objects—one symmetric and one asymmetric—in an effort to understand infants' use of shape information to plan motor action. At first contact, all infants grasped the asymmetrical object further from its center of mass than the symmetrical object. In addition, results highlighted developmental differences in infants' abilities to correct for less stable hand placements, to maintain control of the objects without dropping, strategies used to obtain the objects, and latencies to grasp the objects. Older infants showed more effective skills in each of the aforementioned areas. Implications for our understanding of the development of processing of visual information for action are discussed. © 2007 Wiley Periodicals, Inc. Dev Psychobiol 50: 97–106, 2008.