"人口层面的年龄对白质结构的影响,支持人类大脑的认知灵活性"
Tatiana Wolfe1, Alexandra Gassel1, Maegan L Calvert1
1Dept. of Psychiatry, Brain Imaging Research Center, Psychiatric Research Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72224.
bioRxiv : the preprint server for biology
|July 9, 2025
概括
认知灵活性依赖于特定的白质区域,这些区域随着年龄的增长而成熟. 这些通道中的与髓相关的特性在晚年生活中下降,影响认知功能.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 生物医学成像技术 生物医学成像技术
背景情况:
- 认知灵活性对于适应行为至关重要.
- 灵活性的神经基础是已知的,但白质结构和与年龄相关的变化尚未研究.
- 了解白质在成年期认知灵活性中的作用至关重要.
研究的目的:
- 研究成年期认知灵活性与白质特性之间的关系.
- 检查这些关联如何在不同的生命阶段和大脑通道中发生变化.
- 提出一个新的框架来研究大脑结构-功能关联中的年龄影响.
主要方法:
- 进行元分析,以确定与认知灵活性相关的大脑区域.
- 人类Connectome项目轨道图谱绘制相关的白质地带.
- 英国生物银行MRI数据分析与髓相关的特征和队列分析.
主要成果:
- 认知灵活性与特定的白质区域有关.
- 这些片段在成年早期显示无差异的特征,在晚年显示有差异的特征.
- 这些通道中与髓相关的同质性随着年龄的增长而在生命晚期下降,与认知子过程相关.
结论:
- 支持认知灵活性的白质道经历了与年龄相关的差异化.
- 这种差异化是适应性认知功能在整个生命周期的自然基质.
- 研究结果强调了大脑结构,衰老和认知灵活性之间的动态相互作用.
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