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相关概念视频

Autism Spectrum Disorder01:19

Autism Spectrum Disorder

45
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
45

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相关实验视频

Updated: May 15, 2025

Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging
12:21

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沿途绘制地图 - - 白质微观结构差异在自闭症.

Gaon S Kim1, Bramsh Q Chandio1, Sebastian M Benavidez1

  • 1Imaging Genetics Center, Mark and Mary Stevens Neuroimaging & Informatics Institute, Keck School of Medicine, University of Southern California, 1670 Mindanao Way, Marina del Rey, CA, 90292 USA.

bioRxiv : the preprint server for biology
|April 8, 2025
PubMed
概括
此摘要是机器生成的。

自闭症与广泛的白质变化有关,几乎影响了所有主要的大脑通道. 先进的成像分析揭示了自闭症个体大脑中精确的微观结构差异.

关键词:
自闭症自闭症是什么扩散磁力共振成像 (MRI) 扩散扩散张力成像 扩散张力成像拖拉力测量仪 拖拉力测量仪白物质微观结构 白物质微观结构

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相关实验视频

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科学领域:

  • 神经成像是一种神经成像.
  • 发育神经科学的发展神经科学.
  • 自闭症谱系障碍研究研究

背景情况:

  • 以前的扩散磁共振成像 (dMRI) 研究显示自闭症中不一致的白质变化.
  • 传统的dMRI方法 (例如DTI) 在绘制微观结构细节和复杂的纤维结构方面存在局限性.

研究的目的:

  • 用先进的dMRI分析来调查自闭症中白质微观结构的改变.
  • 精确地绘制自闭症个体中指导和协会通道的微观结构差异.

主要方法:

  • 利用捆绑分析 (BUAN),一种沿途分析方法.
  • 采用了张量分布函数 (TDF) 的高级微观结构模型.
  • 分析了来自10个队伍的365名自闭症和神经类型参与者 (5-24岁) 的dMRI数据.

主要成果:

  • 自闭症与减少的分数异质性和增加的扩散性有关,在大多数 commissural 和协会通道的局部区域.
  • 受影响的通道连接了前脑,脑,脑和脑区域.
  • 结果表明微观结构性质的空间精确映射.

结论:

  • 自闭症中白质微观结构的改变是广泛的,并且特定于区域内的局部区域.
  • 先进的dMRI方法 (BUAN和TDF) 允许对这些变化的强大而精确的表征.
  • 这些发现凸显了自闭症中白质差异的分布性.