自闭症患者在不同发育阶段的动态和静态大脑功能异常
Haonan Li1, Mingxing Han2, Shaoting Tang1
1School of Medical Imaging, Binzhou Medical University, Yantai.
Neuroreport
|February 20, 2025
概括
这项研究揭示了自闭症谱系障碍 (ASD) 在整个发育过程中脑活动的改变,使用静止状态的功能性MRI. 研究结果强调了特定的大脑区域的差异及其与自闭症严重程度的相关性.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 放射学 放射学是一门学科.
背景情况:
- 自闭症谱系障碍 (ASD) 研究往往忽略了整个发展轨迹.
- 了解整个生命周期的神经生物学机制对于有效的干预至关重要.
研究的目的:
- 调查ASD患者大脑功能与年龄相关的变化.
- 使用休息状态功能性MRI (rs-fMRI) 检查儿童,青少年和成年期的大脑活动.
主要方法:
- 分析了来自173名自闭症和178名典型发育 (TD) 个体的rs-fMRI数据.
- 局部大脑活动的特征是使用低频波动的幅度 (ALFFs) 和区域同质性 (ReHo),包括动态措施 (dALFF,dReHo).
- 皮尔森相关性评估了自闭症诊断观察计划得分和大脑活动指标之间的关系.
主要成果:
- 与TD相比,在ASD患者中,在中枢/侧面轨道前回形和右侧胰岛中观察到异常的ALFF值.
- 与患有自闭症的青少年相比,患有自闭症的成年人显示后侧额叶的动态ReHo增加.
- 在ALFF的变化与自闭症症状严重程度相关.
结论:
- 这项研究确定了ASD在不同发育阶段脑活动改变的不同模式.
- 研究结果表明,特定的神经生物学机制有助于ASD的发展和严重程度.
- 结果提供了关于ASD中大脑功能与年龄相关的变化的见解.
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