相关实验视频
Updated: Jun 22, 2025

06:41
Testing for Odor Discrimination and Habituation in Mice
Published on: May 5, 2015
17.7K
自我报告的过敏对气味:对低的客观证据,而不是高的客观证据
Rafa Khan1, Shima T Moein1,2, Richard L Doty1
1Smell and Taste Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
概括
许多报告嗅觉敏感度增加的患者实际上减少了嗅觉功能. 客观测试对于诊断化学感知功能障碍至关重要,因为自我报告可能不准确.
科学领域:
- 神经科学是一个神经科学.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 心理物理学的精神物理.
背景情况:
- 嗅觉过敏,或超,是一种主观的抱怨,可能表明潜在的嗅觉功能障碍.
- 之前的研究并没有在主观的抱怨和客观的嗅觉能力之间做出一致的区别.
研究的目的:
- 使用先进的心理物理测试,客观地比较报告过敏症患者和没有这种投诉的患者的嗅觉功能.
- 调查潜在的促成因素,如抑郁症和其他并发症.
主要方法:
- 在宾夕法尼亚大学的嗅觉和味觉中心进行了一项回顾性横截面研究.
- 用宾夕法尼亚大学的气味识别测试 (UPSIT) 和气味检测值测试来评估嗅觉功能.
- 用差异分析和千平方测试分析数据,包括评估贝克抑郁症库存 (BDI-II).
主要成果:
- 与对照人群相比,抱怨高的患者在UPSIT和气味检测值测试中得分明显较低.
- 报告过敏体质的人中有相当一部分 (70.95%) 呈现出缺氧体质的客观证据 (嗅觉敏感性降低).
- 报告低血的个体也显示了贝克抑郁症库存得分的升高.
结论:
- 客观的心理物理测试显示,许多抱怨嗅觉过敏的患者实际上已经减少了嗅觉功能.
- 主观投诉和客观发现之间的差异可能与嗅觉的改变,诸如臭氧恐惧症之类的并发症,或诸如缺口症之类的心理因素有关.
- 这些结果强调了客观的嗅觉评估对于化学感知功能障碍的准确诊断的必要性,并突出了自我报告症状的局限性.
相关概念视频
Taste Buds and Receptors
1.9K
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
1.9K
Tactile and Chemical Senses
289
Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
289

