Benguigui Nicolas, Broderick Michael, Ripoll Hubert
Centre de Recherches en Sciences du Sport, Université Paris-Sud(11), UFR STAPS, Bâtiment 335, 91405 ORSAY Cedex, France.
Neurosci Lett. 2004 Oct 21;369(3):197-202. doi: 10.1016/j.neulet.2004.07.051.
The present study examined the accuracy in extrapolating an occluded trajectory in relation to observer age. Adults and children aged 7, 10, and 13 were tested in a prediction-motion task which consisted of judging, after the occlusion of the final part of its path, the moment of arrival of a moving stimulus towards a specified position. Results showed that children as young as 7 years old are able to use the same strategy as adults in the extrapolation of an occluded moving object. However, accuracy in responses improves most significantly for occlusion times equal to or more than 400 ms and this improvement occurs mainly between 7 and 10 years of age. This confirms that children are less efficient in performing the computations necessary to extrapolate in time an occluded trajectory.
本研究考察了与观察者年龄相关的推断遮挡轨迹的准确性。对成年人以及7岁、10岁和13岁的儿童进行了一项预测运动任务测试，该任务包括在移动刺激路径的最后部分被遮挡后，判断其到达指定位置的时刻。结果表明，年仅7岁的儿童在推断被遮挡移动物体时能够使用与成年人相同的策略。然而，当遮挡时间等于或超过400毫秒时，反应的准确性提高最为显著，且这种提高主要发生在7岁至10岁之间。这证实了儿童在及时推断遮挡轨迹所需的计算方面效率较低。
