Parental socioeconomic status and the neural basis of arithmetic: differential relations to verbal and visuo-spatial representations.
Parental socioeconomic status and the neural basis of arithmetic: differential relations to verbal and visuo-spatial representations.
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DOI：
10.1111/desc.12268
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发表时间：
2015-09
影响因子：
3.7
通讯作者：
Booth JR
中科院分区：
文献类型：
--
作者：
Demir ÖE;Prado J;Booth JR
我们研究了学龄儿童（9 至 12 岁）的父母社会经济地位 (SES) 与减法神经基础的关系。我们独立定位了支持语言和视觉空间表征的大脑区域，以确定儿童对这些神经表征的依赖与父母社会经济地位相关的差异是否会随着数学技能的变化而变化。在较高的 SES 水平下，较高的技能与语言定位器识别的左颞叶皮层的更多募集相关。在较低的SES水平下，较高的技能与视觉空间定位器识别的右顶叶皮层的更多募集相关。这表明，根据父母的社会经济地位，孩子们会使用不同的神经系统来解决减法问题。此外，SES与独立言语定位任务期间左颞叶和额叶皮层的激活有关，但与独立视觉空间定位任务期间的激活无关。言语定位任务期间的激活差异反过来又与右顶叶皮层减法任务期间的激活差异相关。在社会经济地位较低的情况下，这种关系更为强烈。这一结果表明，减法过程中视觉空间区域中与 SES 相关的差异可能是基于与 SES 相关的言语差异。
We examined the relation of parental socioeconomic status (SES) to the neural bases of subtraction in school-age children (9- to 12-year-olds). We independently localized brain regions subserving verbal versus visuo-spatial representations to determine whether the parental SES-related differences in children’s reliance on these neural representations vary as a function of math skill. At higher SES levels, higher skill was associated with greater recruitment of the left temporal cortex, identified by the verbal localizer. At lower SES levels, higher skill was associated with greater recruitment of right parietal cortex, identified by the visuo-spatial localizer. This suggests that depending on parental SES, children engage different neural systems to solve subtraction problems. Furthermore, SES was related to the activation in the left temporal and frontal cortex during the independent verbal localizer task, but it was not related to activation during the independent visuo-spatial localizer task. Differences in activation during the verbal localizer task in turn were related to differences in activation during the subtraction task in right parietal cortex. The relation was stronger at lower SES levels. This result suggests that SES-related differences in the visuo-spatial regions during subtraction might be based in SES-related verbal differences.