综合的大规模分析显示,青少年时期的大脑结构和认知能力之间存在关联
Jiadong Yan1,2, Yasser Iturria-Medina3,4, Gleb Bezgin3
1Montreal Neurological Institute, McGill University, Montreal, QC, Canada. jiadong.yan@mail.mcgill.ca.
Communications biology
|March 13, 2026
概括
青少年大脑发育显示了结构和认知的显著变化. 大脑结构和认知能力之间的关联在特定的大脑区域最强,并且随着年龄的增长而变化,特别是在额叶,叶和叶.
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
- 认知科学 认知科学
背景情况:
- 青春期涉及显著的大脑结构和认知变化.
- 以前关于大脑结构认知联系的研究受限于小样本和狭窄的措施.
- 了解年龄相关的关联对于认知发展的洞察至关重要.
研究的目的:
- 调查青少年大脑结构和认知能力之间的关联.
- 描述这些大脑认知关联的年龄依赖性.
- 识别与认知发展有关的关键大脑区域和指标.
主要方法:
- 利用一个大队列 (n=8534,年龄9-15岁) 进行结构性MRI和扩散成像.
- 导出了16个区域指标,并将它们整合到形态相似性网络中.
- 应用大规模模型来分析与认知子测试和一般智力 (g) 的关联.
主要成果:
- 认知关联最强的大脑区域也显示出最大的年龄依赖性,特别是在额叶,叶和叶.
- 结构性MRI指标和全球枢纽指标显示出比扩散指标或局部指标更强烈,更依赖年龄的关联.
- 确定了特定的大脑特征及其与认知表现的年龄相关关系.
结论:
- 这项研究提供了青少年大脑结构-认知关联的全面描述.
- 大脑结构的年龄相关变化显著影响认知发育.
- 研究结果强调了考虑年龄的重要性,以了解青春期大脑认知关系.
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