Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Indirect Motor Pathways01:22

Indirect Motor Pathways

3.0K
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...
3.0K
Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

2.4K
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...
2.4K
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

7.0K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
7.0K
Somatosensation01:33

Somatosensation

43.0K
The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
43.0K
Overview of Somatic Sensory Pathways01:29

Overview of Somatic Sensory Pathways

8.3K
Somatic sensory or somatosensory pathways refer to the neural pathways that carry information related to touch, pressure, pain, temperature, and proprioception from the skin, muscles, tendons, and joints to the brain. These pathways involve several stages of processing and integration of sensory information.
The somatosensory system is divided into three main pathways: the dorsal (or posterior) column-medial lemniscus, spinothalamic (or anterolateral), and spinocerebellar pathways.
The dorsal...
8.3K
Direct Motor Pathways01:11

Direct Motor Pathways

4.2K
The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
4.2K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Superficial Ventral Premotor Pathways to Primary Motor Cortex Shape the Temporal Coordination of Precision Grasping.

The European journal of neuroscience·2026
Same author

Hippocampal-cortical structural networks in the progression of cognitive impairment: A source-based morphometry analysis in individuals with subjective cognitive decline, mild cognitive impairment and Alzheimer's disease.

Neurobiology of aging·2026
Same author

Eating Disorder Risk Among Italian University Students: A Cross-Sectional Screening Study Using BMI, EAT-26, and EDE-Q 6.0.

Nutrients·2026
Same author

Shaping the cognitive reserve: the role of lifelong enrichment and education in the Alzheimer's disease continuum.

Frontiers in aging neuroscience·2026
Same author

Effects of combined cerebellar tACS-iTBS in individuals with ataxia (EtABeta): a crossover investigation.

Trials·2026
Same author

Disrupted intracortical inhibition in the prefrontal cortex relates to cognitive dysfunction in post-COVID-19 condition: A TMS-EEG study.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026

相关实验视频

Updated: Jan 17, 2026

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

2.2K

抓取时的感觉运动集成是由不同的M1电路介导的.

Katia Botta1,2, Elisa Dolfini2, Andrea Casarotto1

  • 1IIT@UniFe Center for Translational Neurophysiology, Istituto Italiano di Tecnologia, Ferrara, Italy.

Journal of neurophysiology
|September 22, 2025
PubMed
概括

短暂潜伏的 afferent 抑制 (SAI) 在手握时有所不同. 跨磁刺激 (TMS) 揭示了明显的初级运动皮质 (M1) 电路参与,用于精确与动力掌握,影响传感运动集成.

关键词:
目前的方向是当前的方向.动力抓地带的力量抓地带精密抓地 精密抓地 精密抓地传感器-运动器集成.短延迟的 afferent 抑制是短延迟的

更多相关视频

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation
09:52

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation

Published on: February 23, 2020

9.7K
Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace
09:11

Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace

Published on: August 8, 2019

6.1K

相关实验视频

Last Updated: Jan 17, 2026

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

2.2K
Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation
09:52

Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation

Published on: February 23, 2020

9.7K
Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace
09:11

Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace

Published on: August 8, 2019

6.1K

科学领域:

  • 神经科学是一个神经科学.
  • 发动机控制器的控制器
  • 身体感官系统 身体感官系统

背景情况:

  • 运动控制涉及复杂的刺激和抑制相互作用.
  • 传感器运动集成对于手部运动至关重要.
  • 短延迟附带抑制 (SAI) 是感觉运动一体化的神经生理标志物.

研究的目的:

  • 为了研究SAI在不同的同度手握行为 (精度与动力握).
  • 为了确定主要运动皮层 (M1) 中不同的神经元群体是否被不同的跨磁刺激 (TMS) 线圈定向所吸引.
  • 探索抓类型,TMS线圈方向和传感动力集成标记器之间的关系.

主要方法:

  • 应用的TMS与前后 (AP) 和前后 (PA) 线圈方向到主要运动皮层 (M1).
  • 在精确性和动力抓任务中测量了短延迟附带抑制 (SAI).
  • 在不同的握力条件和刺激方向下评估皮质脊髓刺激能力.

主要成果:

  • 在抓取执行过程中,在AP方向观察到SAI的增加.
  • 精确的握力显示,随着AP刺激,皮质脊髓刺激性得到增强.
  • 没有发现SAI的显著抓地特异性调制,可能是由于thalamocortical afferent分布和胆固醇调制.

结论:

  • 在M1内,不同的皮质电路根据手的配置和传感动力需求进行了差异性激活.
  • SAI调制可能不是严格的抓地特异,这表明更广泛的电路招募或地形精度的限制.
  • 未来的研究应该检查SAI的动态在不同的阶段的预测.