人类位置感官的测量并不总是包括来自外周感官受体的贡献
Uwe Proske1, Bernhard M Weber2
1Department of Physiology, Monash University, Clayton, Victoria, Australia.
The European journal of neuroscience
|February 27, 2026
概括
肌肉,被认为是关键的位置传感器,并不总是参与我们的肢体位置感觉. 这项研究发现,它们对于重新定位任务并非必不可少,这挑战了以前的假设.
科学领域:
- 神经科学是一个神经科学.
- 人类生理学 人类生理学
- 自己的感觉 (proprioception).
背景情况:
- 位置感,对于运动指导至关重要,传统上归因于肌肉.
- 肌肉子对各种位置感测的确切贡献仍在争论中.
研究的目的:
- 为了调查肌肉是否总是参与产生位置感.
- 要区分那些依赖于外围受体的任务和那些不依赖的任务.
主要方法:
- 在被动前臂上使用了三个位置感测方法:两臂匹配,一臂指向和重新定位.
- 使用肌肉史效应和抛物线飞行期间重力变化,改变了肌肉的灵敏度.
主要成果:
- 改变子灵敏度在匹配和指向任务中扰乱了位置感.
- 重定位任务中的位置感受不受改变回应的方法的影响.
结论:
- 重定位任务可能不直接涉及外围受体,如肌肉.
- 研究结果表明,一些位置感测可能导致对外围信号作用的错误结论.
相关概念视频
Introduction to Special Senses
8.0K
Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
8.0K
Somatosensation
44.0K
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.
44.0K
Introduction to Sensory Receptors
8.4K
Sensory receptors are vital in our ability to perceive and interpret the world. Sensory receptors are specialized cells in the peripheral nervous system that respond to various stimuli and enable one to experience different sensations. Based on specific criteria, sensory receptors are classified into distinct types.
The first classification criterion is based on cell type, position, and function. Some receptor cells are neurons with free nerve endings, where their dendrites are embedded in the...
The first classification criterion is based on cell type, position, and function. Some receptor cells are neurons with free nerve endings, where their dendrites are embedded in the...
8.4K
Sensory Perception: Organization of the Somatosensory System
11.5K
The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the...
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the...
11.5K
Sensory Modalities
4.1K
Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
4.1K
Sensory Functions of the Skin
8.9K
The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
8.9K


