多模式证据证明小脑对自闭症皮层发育的影响:在功能障碍中进行结构性增长
Federico d'Oleire Uquillas1, Esra Sefik2, Bing Li2
1Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA. uquillas@princeton.edu.
Molecular psychiatry
|October 10, 2024
概括
自闭症谱系障碍 (ASD) 涉及异常的大脑发育. 这项研究揭示了ASD儿童中小脑和新皮层之间的结构和功能连接发生了变化,这表明自闭症发展的小脑隔离模型.
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.
- 自闭症研究 自闭症研究
背景情况:
- 围产期小脑损伤是自闭症谱系障碍 (ASD) 的危险因素.
- 小脑对大脑皮层发育的影响及其在ASD中的区别尚不清楚.
- 了解大脑小脑发育对于自闭症研究至关重要.
研究的目的:
- 在神经型和自闭症儿童的发育过程中研究小脑和新皮层结构变异之间的相关性.
- 检查泰拉马斯在调节大脑-小脑结构协调中的作用.
- 探索功能连接差异及其与ASD结构发展的关系.
主要方法:
- 利用来自神经类型和自闭症儿童的大型结构性大脑MRI数据集.
- 分析了小脑和新皮层组织的结构变化.
- 进行功能连接分析以评估大脑网络相互作用.
- 研究了大脑结构和功能的与年龄相关的变化和侧面化.
主要成果:
- 发现泰拉马斯在调节ASD中大脑-小脑结构协调方面发挥着独特的作用.
- 观察到小脑,丘脑和新皮层之间的结构合在幼儿时期最强,随着年龄的增长而下降.
- 在ASD中发现小脑和新皮层之间的非典型功能连接,与神经类型相比,具有不同的功能结构关系.
- 在这些发育模式中注意到显著的横向化.
结论:
- 这些发现支持自闭症的大脑小脑隔离模型,突出显示大脑小脑结构合和功能连接的改变.
- 表明自闭症的发育序列,早期不协调的结构生长之后会出现非典型的功能同步.
- 提供了小脑对自闭症谱系障碍本体发生的贡献的多式证据.
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