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视觉空间工作记忆在数字处理中的作用 - - 一项fMRI研究

Yael Guy¹, Sarit Ashkenazi¹

¹Learning Disabilities, The Hebrew University of Jerusalem, The Seymour Fox School of Education, Jerusalem, Israel.

Neuropsychologia

|December 6, 2025

概括

高视觉空间工作记忆 (VSWM) 有助于高效的符号数字处理. 低VSWM的成年人使用口头策略,在数字行任务中显示出不同的大脑激活模式.

科学领域:

认知神经科学认知神经科学
神经成像是一种神经成像.
心理学心理学心理学

背景情况:

研究表明,视觉空间工作记忆 (VSWM) 和数字处理能力之间存在联系.
需要进一步的研究来理解这种行为和神经认知关系.

研究的目的:

用行为和fMRI方法研究VSWM和成年人数处理之间的关系.
在符号数字任务中探索与不同VSWM能力相关的神经解剖学差异.

主要方法:

招募了51名学生,其中40名被纳入分析 (23名男性,17名女性).
根据外部VSWM任务,参与者被分为高VSWM和低VSWM组.
在数轴估计任务中使用fMRI,在个人和团体层面分析数据,包括ROI分析.

主要成果:

与高VSWM组相比,低VSWM组在符号数字处理中表现出更长的反应时间.
在高VSWM组中,fMRI揭示了右侧前额-双脑区域的更大激活,而在低VSWM组中,左半球参与 (双脑,前额,).
左 IPS 激活与数字行任务正相关,突出其在符号数字处理中的作用.

结论:

在高和低VSWM组之间观察到数字处理期间大脑激活的半球差异.
高VSWM个体通过招募域一般VSWM资源,有效地处理符号数字.
低VSWM能力的个体可能依靠口头能力来弥补数字任务中的空间处理缺陷.

关键词:

半球上的差异.左侧的IPS (下面的顶膜)数字行估计任务数字行估计任务符号数字处理是象征性的数字处理.视觉空间工作记忆 (VSWM)功能磁共振成像 (fMRI) 是一种功能磁共振成像技术.

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