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相关概念视频

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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
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相关实验视频

Updated: Jan 10, 2026

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function
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环境新 调节在导航过程中的快速皮质可塑性

Alexander Attinger1, Antonia Drinnenberg2, Can Dong1

  • 1Department of Neurobiology, Stanford University, Stanford, CA, 94305, USA.

bioRxiv : the preprint server for biology
|November 24, 2025
PubMed
概括

神经可塑性塑造了大脑中的空间表征. 经验决定了后皮质 (RSC) 和初级视觉皮质 (V1) 如何适应新环境,平衡稳定性和灵活性.

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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
  • 系统神经科学 系统神经科学

背景情况:

  • 当动物在新环境中导航时,它们在后皮层 (RSC) 和初级视觉皮层 (V1) 迅速形成空间表征.
  • 神经可塑性和经验在塑造这些表征中的确切作用仍然不清楚.

研究的目的:

  • 调查RSC和V1.1中的空间表示的可塑性.
  • 了解体验如何在空间学习过程中调节神经可塑性.

主要方法:

  • 在导航虚拟现实的小鼠中利用了双光子成像和全息光遗传学.
  • 启用了神经活动的实时,细胞分辨率控制.

主要成果:

  • 针对2/3层神经元的有针对性的刺激,使神经活动偏向于新环境中的特定位置.
  • 在RSC中的5层神经元显示出无关环境熟悉性的可塑性.
  • 塑性机制是层特定的,并且依赖于经验.

结论:

  • 新皮层空间表征平衡了熟悉环境中的稳定性和对新信息的灵活性.
  • 这些发现为理解空间导航中的经验依赖可塑性提供了一个框架.