解开自闭症谱系异质性:使用数据/模型驱动的转换测试方法从ABIDE I数据库的见解
Francisco José Alcaide1, Ignacio Alvarez Illan1, Javier Ramírez1
1DaSCI Institute, University of Granada, Granada, Spain.
Brain and behavior
|January 31, 2026
概括
多中心自闭症神经成像研究面临挑战. 自闭症脑成像数据交换I数据库显示,由于变异性和小样本大小,自闭症谱状况 (ASC) 中没有显著的结构性大脑差异.
科学领域:
- 神经成像是一种神经成像.
- 自闭症谱状况研究研究
- 神经发育障碍 神经发育障碍
背景情况:
- 自闭症谱状况 (ASC) 是一种影响沟通和社会互动的神经发育障碍.
- 神经成像研究经常寻求ASC和神经类型对照者之间的结构性大脑差异.
- 研究中心之间的成像协议的变化往往被忽视.
研究的目的:
- 利用自闭症脑成像数据交换I (ABIDE I) 数据库,调查ASC和对照个体之间的结构性大脑差异.
- 评估多中心数据采集对识别ASC神经解剖学区别的影响.
- 评估统计不可知测绘 (SAM) 和统计参数测绘 (SPM) 在多中心自闭症神经成像中的有效性.
主要方法:
- 从ABIDE I数据库中分析结构磁共振成像 (sMRI) 数据.
- 对ASC和对照组之间的大脑结构进行比较,对单个研究中心进行核算.
- 用SAM和SPM进行排列测试的应用,用于统计映射.
主要成果:
- 该SAM方法与之前的文献有一定的一致性.
- 在ASC和对照组之间没有检测到统计学意义上的结构性大脑差异.
- 不一致性归因于每个中心的有限样本大小,噪音和数据异质性.
结论:
- 阿比德I数据库在检测ASC中微妙的结构性大脑差异方面存在局限性.
- 多中心变异性和样本大小不足显著影响自闭症神经成像发现的可靠性.
- 未来的研究需要标准化的协议和更大,同质的数据集,以得出坚实的结论.
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