Department of Psychology, Lancaster University, UK.
Department of Psychology, Lancaster University, UK.
Neuropsychologia. 2019 Mar 18;126:69-74. doi: 10.1016/j.neuropsychologia.2017.11.005. Epub 2017 Nov 7.
In order to understand how experience of an action alters functional brain responses to visual information, we examined the effects of reflex walking on how 10-week-old infants processed biological motion. We gave experience of the reflex walk to half the participants, and did not give this experience to the other half of the sample. The participant's electrical brain activity in response to viewing upright and inverted walking and crawling movements indicated the detection of biological motion only for that group which experience the reflex walk, as evidenced by parietal electrode greater positivity for the upright than the inverted condition. This effect was observed only for the walking stimuli. This study suggests that parietal regions are associated with the perception of biological motion even at 9-11 weeks. Further, this result strongly suggests that experience refines the perception of biological motion and that at 10 weeks of age, the link between action perception and action production is tightly woven.
为了理解动作经验如何改变大脑对视觉信息的功能反应，我们研究了反射行走对 10 周大婴儿处理生物运动方式的影响。我们让一半的参与者体验反射行走，而另一半则没有体验。参与者在观看直立和倒置的行走和爬行运动时的脑电活动表明，只有经历过反射行走的那一组能够检测到生物运动，这可以从前顶叶电极对直立运动的正性反应大于倒置运动的情况得到证明。这种效应仅出现在行走刺激中。本研究表明，即使在 9-11 周大时，顶叶区域也与生物运动的感知有关。此外，这一结果强烈表明，经验可以改善对生物运动的感知，并且在 10 周大时，动作感知和动作产生之间的联系是紧密交织的。
