THE ONTOGENY OF INFANT BIMANUAL REACHING DURING THE 1ST YEAR
THE ONTOGENY OF INFANT BIMANUAL REACHING DURING THE 1ST YEAR
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DOI：
10.1016/0163-6383(86)90040-8
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发表时间：
1986-01-01
影响因子：
2.1
通讯作者：
MICHEL, GF
中科院分区：
文献类型：
--
作者：
GOLDFIELD, EC;MICHEL, GF
分别对6组7 ~ 12个月大的婴儿进行双手伸手过程中的惯用手和协调模式的评估。婴儿双手拿着一个装满玩具的透明盒子。在一些包装盒展示中，在右手或左手的路径上放置了一个低屏障，而在其他展示中则没有屏障。最年轻的和两个年龄最大的婴儿组比其他年龄组更有可能进行同时双手达到没有障碍，但当障碍存在时，11个月大的婴儿最有可能继续进行同时达到。这表明，虽然7个月大的婴儿执行同时达到，这些达到的组织可能不同于年龄较大的婴儿。在非同时双手达成的主导手的选择，手使用偏好作出了显着贡献。8个月大的那组婴儿中，偏爱用手的婴儿比例最高，也是唯一一个当婴儿被放在非偏爱的一侧时，可能会碰到障碍的婴儿。因此，手的偏好可能会影响对环境提供的行动信息的使用。
Handedness and pattern of coordination during bimanual reaching were assessed separately for six groups of infants, 7 to 12 months old. Infants reached bimanually for a transparent toy-filled box. On some presentations of the box a low barrier was placed in the path of either the right or left hand, while on other presentations there was no barrier. The youngest and two oldest groups of infants were more likely than the other age groups to perform simultaneous bimanual reaches with no barrier present, but when a barrier was present the 11-month-olds were most likely to continue to perform simultaneous reaches. This suggests that while infants as young as 7 months perform simultaneous reaches, the organization of these reaches may be different than for older infants. Hand-use preference contributed significantly to selection of a lead hand in non-simultaneous bimanual reaching. The 8-month group, which had the highest proportion of infants with a hand preference, was the only group likely to hit the barrier when it was placed on the nonpreferred side. Hand preference may, thus, bias the use of information about what the environment affords for action.