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相关概念视频

Aging01:26

Aging

51
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
51

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相关实验视频

Updated: Jul 2, 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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使用多层大脑网络分析,将衰老过程中的结构和功能变化联系起来.

Gwendolyn Jauny1, Mite Mijalkov2, Anna Canal-Garcia2

  • 1Normandie Univ, UNICAEN, PSL Université Paris, EPHE, Inserm, U1077, CHU de Caen, Centre Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France.

Communications biology
|February 28, 2024
PubMed
概括
此摘要是机器生成的。

大脑结构和功能相似性,特别是在身和部区域,与健康衰老中保持认知表现有关. 这一发现提供了关于老化期间大脑维护和补偿机制的见解.

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相关实验视频

Last Updated: Jul 2, 2025

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Modeling the Functional Network for Spatial Navigation in the Human Brain
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科学领域:

  • 神经科学是一个神经科学.
  • 认知科学 认知科学
  • 衰老研究研究 衰老研究

背景情况:

  • 大脑结构和功能之间的关系是复杂的,并没有完全理解.
  • 健康老龄化涉及结构完整性的异质变化,影响功能网络动态.

研究的目的:

  • 调查结构和功能大脑连接模式之间的关联.
  • 探索这种关联如何与健康老年人的认知表现有关.

主要方法:

  • 使用多层脑网络分析.
  • 采用了来自Cam-CAN数据库的结构 (扩散加权成像) 和功能 (磁脑摄影) 数据.

主要成果:

  • 在和部区域 (α频段) 的结构和功能连接模式的相似性和认知表现之间发现了显著的关联.
  • 强调结构变化对功能连接重组的影响.

结论:

  • 结构性连接性变化影响功能网络重组,有助于在衰老中保持认知能力.
  • 结构-功能联系可以作为个体变异性和衰老过程中的病理变化的标记.