DEVELOPMENT OF SITTING AND REACHING IN 5-MONTH-OLD TO 6-MONTH-OLD INFANTS
DEVELOPMENT OF SITTING AND REACHING IN 5-MONTH-OLD TO 6-MONTH-OLD INFANTS
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DOI：
10.1016/0163-6383(95)90007-1
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发表时间：
1995-01-01
影响因子：
2.1
通讯作者：
GOUBET, N
中科院分区：
文献类型：
--
作者：
ROCHAT, P;GOUBET, N
据报道，有三项研究调查了5到6个月大的婴儿在接触环境中的物体时身体接触的变化。婴儿是根据他们在没有任何外部身体支持的情况下保持坐姿的相对能力来区分和比较的。第一项研究表明，坐着的婴儿的手伸与躯干前倾相协调，而非坐着的婴儿的手伸与躯干前倾不协调。第二项研究表明，提供臀部支撑的非坐着婴儿也显示出手的伸出和躯干前倾之间的协调迹象。第三项研究比较了不坐着的、近坐着的和坐着的婴儿在他们可握握的空间里够到多个物体的情况。结果表明，幼儿的可握握空间和手的使用作为自坐能力的函数扩展。报告的结果是讨论的姿态，知觉和行动系统的发展之间的相互作用的表达在婴儿期。
Three studies are reported, investigating changes in body engagement by 5- to 6-month-old infants as they reach for objects in the environment. Infants are distinguished and compared based on their relative ability to maintain a sitting posture without any external body support. The first study demonstrates that manual reaching by sitter infants is coordinated with forward leaning of the trunk, whereas reaching by nonsitters is not. The second study demonstrates that nonsitter infants provided with hip support also show signs of a coordination between reaching of the hand and forward leaning of the trunk. The third study compares nonsitter, nearsitter, and sitter infants as they reach for multiple objects spread across their prehensile space. Results demonstrate expansion in the mapping of infants' prehensile space and hand use as a function of self-sitting ability. The reported results are discussed as expressions of the interaction between the development of postural, perceptual, and action systems in infancy.