The development of reaching and looking preferences in infants to objects of different sizes
The development of reaching and looking preferences in infants to objects of different sizes
复制标题
DOI：
10.1037//0012-1649.37.4.561
复制
发表时间：
2001-07-01
影响因子：
4
通讯作者：
Braddick, O
中科院分区：
文献类型：
--
作者：
Newman, C;Atkinson, J;Braddick, O
记录了5-15个月大的婴儿的伸手和寻找偏好以及运动运动学，他们被分为3个年龄组。婴儿呈现3种不同直径的成对圆柱体：小圆柱体（直径1 cm）、中圆柱体（直径2.5 cm）和大圆柱体（直径6 cm）。5 ~ 12月龄的婴儿表现出先看大物体的偏好，而8个半月~ 12月龄的婴儿则表现出明显的先看小物体的偏好。运动学的措施表明，发病的面向对象的行动需要一个放缓的范围和延长的“归巢”阶段。不同年龄的婴儿不同的观看和到达偏好可能反映了视觉加工流发展过程中的分离，这些视觉加工流有助于与视觉定向相关的物体相关动作。
Reaching and looking preferences and movement kinematics were recorded in 5-15-month-old infants, who were divided into 3 age groups. Infants were presented with pairs of cylinders of 3 different diameters: small (1-cm diameter), medium (2.5-cm diameter), and large (6-cm diameter). Whereas infants between 5 and 12 months of age showed a preference for looking first at the large object, a significant preference for reaching to smaller (graspable) objects was observed in 81/2--12-month-old infant,. Kinematic measures suggest that the onset of object-oriented action requires a slowing down of the reach and an extended "homing-in" phase. The divergent looking and reaching preferences in infants at different ages may reflect a dissociation during development of visual processing streams subserving object-related action from those related to visual orienting.