婴儿对可接住性的感知与抓握控制之间的关系。
The relation between infants' perception of catchableness and the control of catching.
作者信息
van Hof Paulion, van der Kamp John, Savelsbergh Geert J P
机构信息
Institute for Fundamental and Clinical Human Movement Sciences, VU University Amsterdam.
出版信息
Dev Psychol. 2008 Jan;44(1):182-94. doi: 10.1037/0012-1649.44.1.182.
The authors studied how infants come to perceive and act adaptively by presenting 35 three- to nine-month-olds with balls that approached at various speeds according to a staircase procedure. They determined whether infants attempted to reach for the ball and whether they were successful (i.e., contacted the ball). In addition, the time and distance of the ball at the onset of the catching movements were measured for the successful interceptions. The authors found that not only catching skill but also the perceptual judgments of the catchableness improved with age; infants started to take their catching ability into account when judging whether a ball was catchable. Moreover, the authors observed that infants who made imprecise perceptual judgments were more likely to use a distance control strategy, whereas infants who made accurate perceptual judgments were more likely to use the more adaptive time strategy to control the catching movements. They conclude that the present study supports the proposal that, even in prelocomotor infants, the development of perception is intricately linked to or constrained by development in the visual control of action.
作者通过按照阶梯程序向35名三到九个月大的婴儿呈现以不同速度靠近的球,研究了婴儿如何开始适应性地感知和行动。他们确定婴儿是否试图伸手去拿球以及是否成功拿到(即触碰到球)。此外,还对成功接球动作开始时球的时间和距离进行了测量。作者发现,不仅接球技能,而且对可接球性的感知判断也随着年龄的增长而提高;婴儿在判断一个球是否可接时开始考虑自己的接球能力。此外,作者观察到,做出不精确感知判断的婴儿更有可能使用距离控制策略,而做出精确感知判断的婴儿更有可能使用更具适应性的时间策略来控制接球动作。他们得出结论,本研究支持这样一种观点,即即使在尚未开始自主运动的婴儿中,感知的发展也与动作视觉控制的发展紧密相连或受到其限制。