Max Planck Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany.
Infant Behav Dev. 2012 Jun;35(3):570-9. doi: 10.1016/j.infbeh.2012.05.003. Epub 2012 Jun 20.
The goal of the present study was to measure infants' action production and perception skills with tasks that both include goal anticipation, in a within-subject design. In the production task, the frequency of 6- and 12-month-old infants' contralateral reaching movements was examined. In the perception task, videos of contralateral movements being performed were presented to the same infants and anticipatory eye movements were analysed. The main findings were: (1) 12-month-olds used their contralateral hand more frequently than 6-month-olds; (2) 12-month-olds mainly anticipated the goals of observed actions, whereas 6-month-olds mainly followed the action; finally, and most importantly, (3) at 12 months, production and perception were linked, but at 6 months, this was not yet the case. Our results show that anticipatory eye movements do not instantly reflect infants' reaching production. A certain amount of experience is required to establish a common representation of the production and the perception of reaching movements.
本研究的目的是在一项被试内设计中，使用既包含目标预期又包含动作产生和感知技能的任务来测量婴儿的动作产生和感知技能。在产生任务中，检查了 6 个月和 12 个月大的婴儿对侧伸手的频率。在感知任务中，向同一组婴儿呈现对侧运动的视频，并分析预期的眼动。主要发现有：（1）12 个月大的婴儿比 6 个月大的婴儿更频繁地使用对侧手；（2）12 个月大的婴儿主要预期观察到的动作的目标，而 6 个月大的婴儿主要跟随动作；最后，也是最重要的，（3）在 12 个月时，产生和感知是相关的，但在 6 个月时，情况并非如此。我们的研究结果表明，预期的眼动并不立即反映婴儿的伸手产生。建立伸手动作产生和感知的共同表现需要一定的经验。
