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How do individual differences in children's domain specific and domain general abilities relate to brain activity within the intraparietal sulcus during arithmetic? An fMRI study

机译:儿童域特异性和域常规能力的个体差异如何与算术过程中的内部血管内的大脑活动有关? 一个FMRI研究

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Previous research has demonstrated that children recruit the intraparietal sulcus (IPS) during arithmetic, which has largely been attributed to domain-specific processes such as quantity manipulations. However, the IPS has also been found to be important for domain-general abilities, such as visuo-spatial working memory (VSWM). Based on the current literature it is unclear whether individual differences in domain-specific skills, domain-general skills, or a combination of the two, are related to the recruitment of the IPS during arithmetic. This study examines how individual differences in both domain general and domain specific competencies relate to brain activity in the IPS during arithmetic, and whether the relationships are related to how brain activity is measured. In a sample of 44 school-aged children, we found that VSWM was only weakly related to a neural index of arithmetic complexity (neural problem size effect), whereas symbolic number processing skills (symbolic comparison and ordering) were related to overall arithmetic activity (both small and large problems). By simultaneously examining multiple domain-general and domain specific measures, we were also able to determine that symbolic skills were a stronger predictor of brain activity within the IPS than domain general skills such as VSWM and domain specific skills such as non-symbolic number processing. Together, these findings highlight that neural problem size effect may reflect different cognitive processes than brain activity across both small and large arithmetic problems, and that symbolic number processing skills are a critical predictor of variability in IPS activity during arithmetic. Hum Brain Mapp 38:3941-3956, 2017. (c) 2017 Wiley Periodicals, Inc.
机译:以前的研究表明,儿童在算术期间招募内核(IPS),这主要归因于数量操纵等域特定过程。但是,也发现IPS对域的一般能力很重要,例如Visuo-Spatial工作记忆(VSWM)。基于目前的文献,目前尚不清楚域特定技能,领域一般技能或两者组合的个体差异与IPS在算术期间的招聘有关。本研究审查了域一般和域特异性能力的个体差异如何与IPS期间IP中的大脑活动相关,以及关系是否与脑活动的测量方式有关。在44个学龄儿童的样本中,我们发现VSWM甚至与算术复杂性的神经指数(神经问题大小效应)略微相关,而符号数处理技能(符号比较和订购)与总算术活动有关(既小问题也是大问题。通过同时检查多个域一般和域的具体措施,我们还能够确定符号技能是IPS内的大脑活动的更强大的预测因子,而不是域名常规技能,例如VSWM和域特定技能,例如非符号数处理。这些发现突出显示神经问题尺寸效应可以反映比小型和大算术问题的大脑活动的不同认知过程,并且符号编号处理技能是算术期间IPS活动中变异性的关键预测因子。 HUM Brain MAPP 38:3941-3956,20177。(c)2017年Wiley期刊,Inc。

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