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相关概念视频

Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

951
Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the...
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Diencephalon: Thalamus and Information Relay01:27

Diencephalon: Thalamus and Information Relay

1.6K
The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is  a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological...
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Cerebellum: Anatomical Regions01:17

Cerebellum: Anatomical Regions

1.6K
The cerebellum, also known as the "little brain," is located in the posterior cranial fossa, inferior to the tentorium cerebelli and dorsal to the brainstem. It plays a significant role in motor control, coordination, and proprioception.
Cerebellar Structure
Externally, the cerebellum features a highly convoluted surface with numerous folia (narrow ridges) separated by shallow sulci (grooves). The cerebellum is divided into two hemispheres by a thin median structure known as the vermis. The...
1.6K
Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

427
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
427
Hierarchy of Motor Control01:18

Hierarchy of Motor Control

2.7K
The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
2.7K
Indirect Motor Pathways01:22

Indirect Motor Pathways

1.5K
The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
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相关实验视频

Updated: Jun 29, 2025

Modeling the Functional Network for Spatial Navigation in the Human Brain
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Modeling the Functional Network for Spatial Navigation in the Human Brain

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创建自己的路径:基于序列的自我导航导航中的社会小脑.

Meijia Li1, Naem Haihambo1, Tom Bylemans1

  • 1Faculty of Psychology and Center for Neuroscience, Vrije Universiteit Brussel, Brussels 1050, Belgium.

Social cognitive and affective neuroscience
|March 30, 2024
PubMed
概括

观察他人的全部运动路径 (Other Sequencing) 吸引了大脑区域进行思维,而不是计划自己的目标 (Self Sequencing). 自主导的规划激活了不同的小脑区域,而不是复制别人的轨迹.

关键词:
目标导向的行为是目标导向的行为.这是一种精神化的思维.在小脑后部的小脑.基于顺序的导航系统.社交导航是社会导航.

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Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function
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Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function

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A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat
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A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat

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相关实验视频

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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
  • 社会认知是指社会认知.

背景情况:

  • 空间轨迹的规划和执行对于社会导航至关重要.
  • 了解观察和产生轨迹的神经基础,特别是在社会环境中,是很重要的.

研究的目的:

  • 为了研究基础的神经机制的观测和空间轨迹的生产.
  • 为了比较自己计划的轨迹中的大脑活动与复制他人的轨迹.

主要方法:

  • 参与者从事以目标为导向的任务,涉及自我规划轨迹 (自我排序) 或观察和复制他人的轨迹 (其他排序).
  • 功能磁共振成像 (fMRI) 用于测量这些任务期间的大脑活动.
  • 控制条件包括非社会对象和非顺序轨迹.

主要成果:

  • 观察别人的完整轨迹 (其他测序) 激活了小脑 (Crus 2, 1) 和皮质思维区域 (precuneus,mPFC,TPJ),而不是观察自我测序的目标.
  • 产生自己的轨迹 (自我测序) 激活了小脑Crus 1,而不是复制别人的轨迹.
  • 自主规划 (自主测序) 激活小脑叶 IV 和 VIII 更多,而不是其他测序.

结论:

  • 独特的神经机制是社会背景下空间轨迹的观测和生成的基础.
  • 大脑和前额叶皮层区域在自我引导与其他引导的轨迹规划和执行方面有所不同.
  • 结果提供了关于社交导航和行动观察/生产的神经基础的见解.