Department of Psychological and Brain Sciences, Indiana University, USA.
Dev Sci. 2011 Jul;14(4):673-8. doi: 10.1111/j.1467-7687.2010.01011.x. Epub 2010 Dec 5.
Previous research shows that sensory and motor systems interact during perception, but how these connections among systems are created during development is unknown. The current work exposes young children to novel 'verbs' and objects through either (a) actively exploring the objects or (b) by seeing an experimenter interact with the objects. Results demonstrate that the motor system is recruited during auditory perception only after learning involved self-generated interactions with objects. Action observation itself led to above-baseline activation in one motor region during visual perception, but was still significantly less active than after self-generated action. Therefore, in the developing brain, associations are built upon real-world interactions of body and environment, leading to sensori-motor representations of both objects and words.
先前的研究表明，感觉和运动系统在感知过程中相互作用，但这些系统之间的连接是如何在发育过程中形成的尚不清楚。本研究通过以下两种方式让幼儿接触到新的“动词”和物体：（a）主动探索物体；（b）通过观察实验者与物体的互动。结果表明，只有在学习涉及与物体的自我生成交互之后，听觉感知才会招募运动系统。在视觉感知期间，动作观察本身会导致一个运动区域的激活水平高于基线，但仍明显低于自我生成动作后的激活水平。因此，在发育中的大脑中，关联是基于身体和环境的真实世界相互作用建立起来的，从而产生物体和单词的感觉运动表示。
