Spatial determinants in the perception of self-produced leg movements in 3- to 5-month-old infants.
Spatial determinants in the perception of self-produced leg movements in 3- to 5-month-old infants.
复制标题
3至5个月大婴儿自主腿部运动感知的空间决定因素。
DOI：
10.1037/0012-1649.31.4.626
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发表时间：
1995
影响因子：
4
通讯作者：
R. Morgan
中科院分区：
文献类型：
--
作者：
P. Rochat;R. Morgan
60名3个月大和4-5个月大的婴儿同时被展示了自己腿部的两个在线视频图像。在三个实验中，两幅图像和婴儿实际运动之间的时间偶合保持不变，而它们的空间关系被系统地操纵。在实验一中，视觉显示器上运动的空间方向和方向性都是不同的。在实验2中，只有运动的方向性不同。在实验3中，只有空间方向是不同的。分析的重点是婴儿在观看任何一种视角时的偏好注视和腿部活动量的相对量。结果显示，两组婴儿都积极地比较和探索了他们的腿的两个视角。在观看左右颠倒的画面时，他们看起来明显更长，产生的腿部活动也明显更多。这些结果表明，幼儿对自身产生的腿部运动的感知部分取决于关于运动方向性的空间信息。这些结果被解释为早期检测到了多模式不变量的证据，这些不变量将身体指定为环境中的情境代理人。
Sixty 3- and 4-5-month-old infants were simultaneously presented with 2 on-line video images of their own legs. In 3 experiments, the temporal contingency between the 2 images and the infant's actual movements was maintained constant while their spatial relationships were systematically manipulated. In Experiment I, both spatial orientation and directionality of movement on the visual display were varied. In Experiment 2, only directionality of movement was varied. In Experiment 3, only spatial orientation was varied. Analyses focused on infants' preferential looking and relative amount of leg activity while looking at either view. Results show that both groups of infants actively compared and explored the 2 views of their legs. They looked significantly longer and generated significantly more leg activity while looking at the view displaying a left-right inversion. These results demonstrate that the perception of self-produced leg movements by young infants is partially determined by spatial information about movement directionality. The results are interpreted as evidence of an early detection of intermodal invariants which specify the body as a situated agent in the environment.