Perceptional Mechanisms of the Humid and Wet Sensation of the Human Skin and the Effect of the Sensation on the Central and Autonomic Nervous Systems

在服装舒适性评价研究中，湿感的评价是非常重要的。本研究的开展是为了更好地了解人体湿感和湿感功能的机制。这项研究的另一个目的是确定由衣服引起的潮湿感和湿感对中枢和自主神经系统的影响。结果主要总结如下：(1)造成人体总体湿度感觉的主要因素是人体与环境之间建立热平衡所需的蒸发换热，以及皮肤表面实际的蒸发热损失。(2)采用胶囊法对皮肤进行局部湿润刺激，对区域湿度感觉没有影响。影响区域湿度和湿感的最重要因素是皮肤蒸发引起的皮肤温度变化和皮肤对水的触觉敏感性。3)制作了不同孔径聚乙烯薄膜的实验服，并用KES系统和排汗热人体模型对其物理性能，特别是热性能和蒸发热性能进行了评价。4)对穿着实验服的受试者心率波动的功率谱分析表明，副交感神经活动水平指数HF /(HF+LF)随衣服内湿度的增加而降低。5)随着衣服内湿度的增加，反映受试者放松状态的脑电图α波频率百分比降低。6)通过对内分泌反应的研究发现，随着衣服内部湿度的增加，唾液中分泌免疫球蛋白a和皮质醇的量增加，肾上腺素降低。这些结果表明，衣服引起的湿度不仅对心理感觉有很大影响，而且对生理状况、自主神经系统和中枢神经系统也有很大影响。少

The evaluation of humid and wet sensation is very important in studies aiming to assess clothing comfort. The present study was carried out in order to better understand the mechanism responsible for humid and wet sensation of the human body function. Another object of this study was to determine the effect of humid and wet sensation that was caused by the clothing on the central and autonomic nervous systems. The results were mainly summarized as follows.1) The main factors contributing to the general humidity sensation of the human body were the evaporative heat transfer required in establishing a heat balance between the human body and the environment, as well as the real evaporative heat loss from the skin surface2) Regional humid stimuli added to the skin by using capsule method had no effect on the regional humidity sensation. The most important factors which contributed to regional humidity and wet sensation were change in skin temperature through evaporation from the skin and t … More he tactile sensitivity to water on the skin.3) The experimental clothes made of polyethylene film with different size holes were made and the physical properties, especially the thermal and evaporative heat properties, were evaluated both by KES system and by a sweating thermal manikin.4) A power spectral analysis of heart rate fluctuation of the subject wearing the experimental clothes showed that an index of parasympathetic activity level, HF /(HF+LF), decreased with humidity inside clothes.5) Alpha waves frequency percentage of EEG, which indicated the relaxation of the subject, decreased with humidity inside clothes.6) As a result of investigation of the endocrine responses, Secretory immunoglobulin A and cortisol volume in saliva was increased and adrenalin was decreased with humidity inside clothes.All these results pointed out that the humidity caused by clothes greatly affected not only on the psychological sensation but also on the physiological conditions, autonomic and central nervous systems. Less