大脑结构和认知的社会决定因素
Mahsa Mayeli1, David Matuskey2,
1Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT, USA.
Social science & medicine (1982)
|February 9, 2026
概括
邻居的劣势与老年人的认知衰退和大脑结构差异有关. 这些关联表明环境因素影响神经退行症以外的认知.
科学领域:
- 神经科学是一个神经科学.
- 公共卫生 公共卫生
- 老年学是一门学科.
背景情况:
- 社会经济劣势是认知能力下降的已知风险因素.
- 关联弱势与认知衰退的神经通路尚未得到充分理解.
- 区域贫困指数 (ADI) 衡量了社区的劣势.
研究的目的:
- 调查邻居不利 (ADI) 与老年人的认知表现,轻度认知障碍 (MCI) 和阿尔茨海默病 (AD) 之间的关联.
- 确定结构性大脑差异是否调解了ADI和认知之间的关系.
主要方法:
- 包括822名老年人 (认知无障碍[CU],MCI,AD) 在内.
- 回归模型评估了ADI,认知和大脑结构之间的关联,根据年龄和性别进行调整.
- 调解分析探讨了大脑总体积在ADI-认知关系中的作用.
主要成果:
- 较高的ADI与CU和MCI个体的认知表现较差相关.
- 在CU中,ADI与较小的总脑容量和较大的白质超强度有关.
- 总大脑体积部分介导了ADI和语言表现之间的关联.
结论:
- 邻居的劣势与认知脆弱性和大脑结构变化有关.
- 大脑体积解释了弱势和认知之间的联系的有限部分.
- 环境和背景因素可能会通过超越结构性神经退行症的途径影响认知表现.
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