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儿童学习代数方程求解时大脑激活模式的变化。

The change of the brain activation patterns as children learn algebra equation solving.

作者信息

Qin Yulin, Carter Cameron S, Silk Eli M, Stenger V Andrew, Fissell Kate, Goode Adam, Anderson John R

机构信息

Department of Psychology, Carnegie Mellon University, Pittsburgh, PA 15213, USA.

出版信息

Proc Natl Acad Sci U S A. 2004 Apr 13;101(15):5686-91. doi: 10.1073/pnas.0401227101. Epub 2004 Apr 2.

Abstract

In a brain imaging study of children learning algebra, it is shown that the same regions are active in children solving equations as are active in experienced adults solving equations. As with adults, practice in symbol manipulation produces a reduced activation in prefrontal cortex area. However, unlike adults, practice seems also to produce a decrease in a parietal area that is holding an image of the equation. This finding suggests that adolescents' brain responses are more plastic and change more with practice. These results are integrated in a cognitive model that predicts both the behavioral and brain imaging results.

摘要

在一项针对学习代数的儿童的脑成像研究中,结果显示,儿童在解方程时激活的脑区与有经验的成年人解方程时激活的脑区相同。与成年人一样,符号操作练习会使前额叶皮质区域的激活减少。然而,与成年人不同的是,练习似乎还会使负责保持方程图像的顶叶区域的活动减少。这一发现表明,青少年的大脑反应更具可塑性,会随着练习产生更多变化。这些结果被整合到一个认知模型中,该模型可以预测行为和脑成像结果。

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Three parietal circuits for number processing.三个顶叶回路用于数字加工。
Cogn Neuropsychol. 2003 May 1;20(3):487-506. doi: 10.1080/02643290244000239.
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