一个人的皮肤硬度预测了他们对遵守的触觉歧视
Bingxu Li1, Gregory J Gerling1
1Systems and Information Engineering, Mechanical Engineering, School of Engineering and Applied Science, University of Virginia, Charlottesville, VA, USA.
The Journal of physiology
|November 9, 2023
概括
皮肤硬显著影响触觉敏度,影响个人如何感知对象服从. 更柔软的皮肤通过增强变形信号,导致更好的歧视,正如氨酸应用所证明的那样.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 人类的感知 人类的感知
背景情况:
- 触觉敏度因年龄,性别和手指大小而异,但皮肤硬的作用不太清楚.
- 以前的假设表明,由于神经密度,较小的手指可以增强触觉感知.
研究的目的:
- 调查皮肤硬对触觉敏度的影响,独立于手指大小和脊梁宽度.
- 改进对皮肤生物力学如何导致触觉感知个体差异的理解.
主要方法:
- 利用3D皮肤表面成像来分析物体接触时的变形.
- 结合生物力学测量,多变量回归,聚类和心理物理实验.
- 应用氨酸调节皮肤硬,并观察触觉知觉的影响.
主要成果:
- 皮肤硬与手指大小相关,但更强烈地预测知觉敏度.
- 更柔软的皮肤产生更明显的变形模式,增强对象遵守的歧视.
- 氨酸的应用显示了触觉敏度的立即改善,以区分遵守.
结论:
- 皮肤硬是调节机械触摸信号和触摸感知个体差异的关键因素.
- 这些发现完善了对触觉敏度的理解,突出了皮肤生物力学,而不仅仅是神经密度.
- 皮肤的机械特性在塑造感官感知方面发挥着重要作用.
相关概念视频
01:33Somatosensation
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.
01:16Sensory Functions of the Skin
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...