在患有发育失衡症的儿童中,数字大脑的有效连接性发生变化
Simone Schwizer Ashkenazi1,2, Ursina McCaskey1,3, Ruth O'Gorman Tuura1,3,4
1Center for MR-Research, University Children's Hospital Zurich, Zurich, Switzerland.
Journal of neuroscience research
|July 21, 2025
概括
患有发育性计算障碍 (DD) 的儿童在数字任务中显示出大脑连接的改变,即使表现没有受损. 这表明,与典型发育 (TD) 儿童相比,DD中数字表示的基础神经差异.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 发展心理学 发展心理学
背景情况:
- 数字顺序能力对算术至关重要,在发育性失能症 (DD) 中经常受到损害.
- 以前的研究表明,DD中数字处理区域的大脑反应发生了变化,但网络相互作用仍然不清楚.
研究的目的:
- 在DD和典型发育 (TD) 儿童的数字处理过程中,调查右头顶,额头和岛屿区域网络中的有效连接.
- 检查数字顺序和数字识别任务如何调节这个网络的连接,并识别群体差异.
主要方法:
- 采用动态因果建模 (DCM) 来分析功能磁共振成像 (fMRI) 数据.
- 检查了六个关键大脑区域之间的有效连接:补充前运动区 (preSMA),腹前运动皮层 (vPMC),前侧内突 (aIPS),背部前侧胰岛 (d-aINS) 和虫.
- 评估了DD和TD儿童之间的联系和群体差异的与任务相关的调制.
主要成果:
- 数序任务揭示了preSMA的主导编排作用,增加了与其他地区的激发性连接.
- 在数字顺序任务中,DD儿童从aIPS,preSMA和d-aINS向vPMC显示异常连接.
- 在数字识别过程中,TD儿童表现出从vPMC到aIPS和vermis的抑制调制,而DD儿童表现出增加的激发性连接模式,尽管表现没有受损.
结论:
- 在DD和TD儿童之间,无论行为表现如何,神经元数量处理都不同.
- 在DD中异常的连接模式表明了数字在神经中表示方式的潜在差异.
- 这些发现支持了DD中神经元数值表示度下降的假设.
关键词:
这就是为什么MRI是MRI.孩子们的孩子们的孩子们的孩子们.发育性计算障碍症的发生.有效的连接,有效的连接.体内硫 (intraparietal sulcus) 是一种体内硫.数字能力的人数能力.预补充电机区域的前补充电机区域更多相关视频
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