与典型发育儿童相比,发育协调障碍儿童的皮质灰质体积差异与典型发育儿童相比
Myrah Malik1, Alexander Weber2,3, Donna Lang2,4
1Graduate Programs in Rehabilitation Science, University of British Columbia, Vancouver, BC, Canada.
Frontiers in human neuroscience
|June 3, 2024
概括
患有发育协调障碍 (DCD) 的儿童在特定的大脑区域显示出较大的灰质体积,这可能表明大脑发育发生了变化. 这一发现将皮质差异与DCD中的运动和注意力困难联系在一起.
科学领域:
- 神经科学是一个神经科学.
- 发育神经科学的发展神经科学.
- 神经成像是一种神经成像.
背景情况:
- 发育协调障碍 (DCD) 的特点是运动缺陷,病因不明.
- 神经成像表明,DCD中大脑发育发生了变化,包括结构和功能连接的差异.
- 有限的研究已经探索了患有DCD的儿童的皮质体积.
研究的目的:
- 为了研究与典型发育 (TD) 儿童相比,患有DCD的儿童的皮质灰质体积差异,使用基于voxel的形态测量 (VBM).
主要方法:
- 一项涉及30名DDC儿童和12名TD儿童的横截面研究.
- 基于voxel的形态测量 (VBM) 分析皮质灰质体积使用计算解剖学工具盒-12.
- 单向ANOVA用于比较组,控制总内体积;对运动/注意力预测因子的回归分析.
主要成果:
- 与TD儿童相比,患有DCD的儿童在左上额头环中表现出明显增加的灰质体积.
- 在左上额头,额头极和右中额头的较大灰质体积与较差的运动技能相关.
- 左上额头,上额叶叶和前骨的灰质增加与较高的ADHD指数得分有关.
结论:
- 这些发现表明,在特定的额头和头顶区域,较大的灰质体积与DCD中的运动和注意力障碍有关.
- 皮层发育的改变,可能是由于延迟的稀释或异常的突触修剪,可能是DCD的灰质差异的基础.
- 这项研究支持DCD与神经发育变化相关的假设.
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