结构性MRI偏差与由于头部运动导致的延迟折扣相关
James Read-Tannock1, Andrew Reid2, Etienne Farcot3
1School of Psychology, University of Nottingham, Nottingham, United Kingdom.
Human brain mapping
|February 22, 2026
概括
通过延迟折扣测量的冲动行为可能与大脑结构的差异有关,但MRI扫描期间的头部运动可能会混这些发现. 未来的研究应该考虑运动工件,以确保准确的结果.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
背景情况:
- 延迟折扣是一种冲动行为的衡量标准,在先前的研究中与皮质灰质体积和厚度有关.
- 研究这些关联的磁共振成像 (MRI) 研究容易受到参与者头部运动引起的工件的影响.
研究的目的:
- 为了研究延迟折扣和皮质灰色物质结构之间的关系.
- 确定扫描器内头部运动是否会混延迟折扣和灰色物质指标之间的观察到的关联.
主要方法:
- 利用了1096名参与人体连接组项目年轻成年人数据集的MRI数据.
- 分析了延迟折扣措施和扫描器内头部运动之间的相关性.
- 评估了头部运动对皮质灰质厚度估计的影响.
主要成果:
- 延迟折扣与扫描器内头部运动显著相关.
- 头部运动偏差灰色物质厚度估计在广泛的新皮层区域向下.
- 观察到延迟折扣和灰质稀释之间的相关性与运动诱导的稀释效应有显著的关联.
结论:
- 研究结果表明,以前报告的延迟折扣和皮质灰质之间的关联可能会被运动工件混.
- 建议在未来关于延迟折扣的结构相关性研究中在数据采集或分析期间对运动效应进行校正.
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