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相关概念视频

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What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
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相关实验视频

Updated: Jun 11, 2025

A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance
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在青少年个性化功能网络拓学中可重现的性别差异.

Arielle S Keller1,2, Kevin Y Sun3,4,5, Ashley Francisco3,5

  • 1Department of Psychological Sciences, University of Connecticut, Storrs, CT, 06269, USA.

bioRxiv : the preprint server for biology
|October 10, 2024
PubMed
概括

大脑网络组织中的性别差异在青春期出现,影响心理健康. 这些模式与X关联基因表达有关,这可能解释了女性对精神疾病的脆弱性.

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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
  • 遗传学 是一个遗传学.

背景情况:

  • 了解性别特定的大脑发育对于解决影响女性的精神疾病至关重要.
  • 功能性大脑网络组织的个体差异因性别而异,并且与精神病理学有关.

研究的目的:

  • 研究性对青少年个性化功能性脑网络空间组织的影响.
  • 为了识别显示出显著的基于性别的地形差异的大脑网络.

主要方法:

  • 利用非负矩阵因子化,从大量青少年队列 (n=6437) 中创建个体特定的功能性大脑网络图谱.
  • 采用了通用添加模型来分析基于性别的关联与网络拓和支持向量机器的性别分类.
  • 网络拓的性别差异与艾伦人类大脑图谱中的基因表达数据相关联.

主要成果:

  • 在个性化功能网络 (PFN) 地形学中观察到显著的性别差异,特别是在协会网络中 (前额头,腹部注意力,默认模式).
  • 机器学习模型根据PFN地形准确地对参与者的性别进行了分类.
  • 在PFN地形中,大脑区域具有明显的性别差异,对X链基因和在星球细胞和刺激神经元中表达的基因进行了丰富.

结论:

  • 在PFN拓中,性别差异是强大的,可复制的,并且与X链接基因表达模式相关.
  • 这些发现表明,青春期女性抑郁和焦虑风险增加的神经生物学基础.
  • 这项研究强调了将性视为大脑发育和心理健康研究中的生物变量的重要性.