Visual information and object size in infant reaching
Visual information and object size in infant reaching
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DOI：
10.1016/j.infbeh.2010.07.007
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发表时间：
2010-12-01
影响因子：
2.1
通讯作者：
Carrico, Renee L.
中科院分区：
文献类型：
--
作者：
Berthier, Neil E.;Carrico, Renee L.
我们通过对6-9个月和12个月婴儿在光照和黑暗中触觉能力的测试，研究了6个月、9个月和12个月婴儿在光中和黑暗中触觉能力的使用情况。结果发现，6个月和1岁婴儿在黑暗中触觉的速度和6个月时在黑暗中的触觉速度较快，而在1岁时在光中触觉的速度较快，在运动时间上观察到平行效应物体的平均速度大小在12个月时被看到数据支持这样的假设，即6个月左右的较大婴儿使用视觉，并且较小年龄的9个月和12个月大的到达和掌握规划与大约9个月和12个月的对象大小不同根据本体感觉信息和目标对象的视力进行更正(C)2010 Elsevier Inc.保留所有权利
It has been suggested that the onset of successful reaching in infants is mediated by the onset of an ability to use sight of the hand to make corrective reaches However removing vision of the hand in infants younger than 6 months has not been shown to have an effect on reaching onset or kinematics We investigated the use of vision of the hand by testing 6-9- and 12-month-old Infants reaching for objects in the light and in the dark We found that infants reached faster in the dark at 6 months and faster in the light at 1 year Parallel effects were observed in the movement times Consistent effects of altering target object size on average speed were seen at 12 months The data support the hypothesis that vision is used by older Infants around 6 months-of-age and that reach and grasp planning differentiate with object size at about 9 and 12 months-of-age At younger ages reaches are corrected on the basis of proprioceptive information and sight of the target object (C) 2010 Elsevier Inc All rights reserved