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顶内沟水平段中抽象序数知识的处理

Processing of abstract ordinal knowledge in the horizontal segment of the intraparietal sulcus.

作者信息

Fias Wim, Lammertyn Jan, Caessens Bernie, Orban Guy A

机构信息

Department of Experimental Psychology, Ghent University, Gent, Belgium.

出版信息

J Neurosci. 2007 Aug 15;27(33):8952-6. doi: 10.1523/JNEUROSCI.2076-07.2007.

Abstract

The anterior intraparietal sulcus, and more specifically its horizontal segment (hIPS), is known to play a crucial role in the cognitive representation of numerical quantity. Whether the involvement of hIPS is restricted to the processing of numerical information or generalizes to non-numerical ordinal dimensions remains an open question. Using functional magnetic resonance imaging during comparison tasks, we demonstrate that the hIPS is equally responsive to numbers and letters, indicating that hIPS is also involved in the representation and processing of non-numerical ordinal series. This extends the numerical processing function of IPS into the realm of abstract knowledge processing.

摘要

已知顶内沟前部,更具体地说是其水平段(hIPS),在数字数量的认知表征中起着关键作用。hIPS的参与是否仅限于数字信息的处理,还是会推广到非数字的顺序维度,仍然是一个悬而未决的问题。在比较任务中使用功能磁共振成像,我们证明hIPS对数字和字母的反应是相同的,这表明hIPS也参与非数字顺序系列的表征和处理。这将顶内沟的数字处理功能扩展到抽象知识处理领域。

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本文引用的文献

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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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