Neurofunctional plasticity in fraction learning: An fMRI training study

IF 3.4 Q2 NEUROSCIENCES

Trends in Neuroscience and Education Pub Date : 2020-12-01 DOI:10.1016/j.tine.2020.100141

Silke M. Wortha , Johannes Bloechle , Manuel Ninaus , Kristian Kiili , Antero Lindstedt , Julia Bahnmueller , Korbinian Moeller , Elise Klein

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引用次数: 7

Abstract

Background

Fractions are known to be difficult for children and adults. Behavioral studies suggest that magnitude processing of fractions can be improved via number line estimation (NLE) trainings, but little is known about the neural correlates of fraction learning.

Method

To examine the neuro-cognitive foundations of fraction learning, behavioral performance and neural correlates were measured before and after a five-day NLE training.

Results

In all evaluation tasks behavioral performance increased after training. We observed a fronto-parietal network associated with number magnitude processing to be recruited in all tasks as indicated by a numerical distance effect. For symbolic fractions, the distance effect on intraparietal activation was only observed after training.

Conclusion

The absence of a distance effect of symbolic fractions before the training could indicate an initially less automatic access to their overall magnitude. NLE training facilitates processing of overall fraction magnitude as indicated by the distance effect in neural activation.

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分数学习中的神经功能可塑性:fMRI训练研究

众所周知，分数对儿童和成人来说都很难。行为学研究表明，分数的大小处理可以通过数线估计(NLE)训练得到改善，但对分数学习的神经相关性知之甚少。方法研究分数学习的神经认知基础，对5天NLE训练前后的行为表现和神经相关因素进行测量。结果训练后各评价任务的行为表现均有所提高。我们观察到与数字大小处理相关的额顶叶网络在所有任务中都被招募，这表明了数字距离效应。对于符号分数，距离对顶叶内激活的影响仅在训练后观察到。结论符号分数在训练前不存在距离效应，说明对符号分数整体大小的自动获取程度较低。神经激活中的距离效应表明，NLE训练有利于整体分数量级的加工。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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