晚期失明和聋与触觉敏感性降低有关,但早期失明并非如此
Hanna Koehler1, Ilona Croy2, Anna Oleszkiewicz3
1Department of Neurology, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany; Biomagnetic Center, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany; Department of Psychology, Clinical Psychology, Friedrich Schiller University Jena, Fürstengraben 1, 07743 Jena, Germany.
Neuroscience
|June 29, 2023
概括
感觉丧失会影响触觉敏感性,聋和晚期失明会减少它,而早期失明不会. 复杂的相互作用,而不是简单的补偿,解释了这些体感变化.
科学领域:
- 神经科学是一个神经科学.
- 感官感知是一种感官感知.
- 人体生理学 人体生理学
背景情况:
- 感知依赖于多感官集成,每个感官提供独特的环境信息.
- 一种模式的感觉损失可能导致其他模式的补偿性变化或缺陷.
- 在早期听觉或视觉损失后,既增加了敏感性,也损害了其他感官.
研究的目的:
- 调查聋,早期失明和晚期失明对触觉敏感性的影响.
- 为了比较不同感觉损失组及其对照组的触觉敏感度.
- 探索潜在的机制,包括感官补偿和使用依赖,这可能解释观察到的体感变化.
主要方法:
- 一项涉及聋人 (N=73),早期失明 (N=51),晚期失明 (N=49) 和年龄/性别匹配的对照人群的比较研究.
- 触觉灵敏度是使用标准单丝试验来评估的.
- 测试是在两个不同的位置进行的:手指和手背.
主要成果:
- 与对照人群相比,聋和晚期失明的个体表现出明显较低的触觉灵敏度.
- 在早期失明患者和他们的对照人群之间,没有发现触觉敏感度的显著差异.
- 观察到的触觉灵敏度差异在两个测试位置 (手指和手背) 都是一致的,并且独立于性别和年龄.
结论:
- 耳聋和晚期失明的个体的触觉敏感性降低,这表明,除了简单的感官补偿之外,因素的复杂相互作用.
- 在早期失明中缺乏改变的触觉敏感性表明,感觉损失的时间和性质是至关重要的.
- 这些发现表明,感官损失后体感觉的变化是由于影响的复杂相互作用造成的,而不是单一的机制,如使用依赖或发育障碍.
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