Regional differences in temperature sensation and thermal comfort in humans
Regional differences in temperature sensation and thermal comfort in humans
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DOI：
10.1152/japplphysiol.90466.2008
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发表时间：
2008-12-01
影响因子：
3.3
通讯作者：
Kanosue, Kazuyuki
中科院分区：
文献类型：
--
作者：
Nakamura, Mayumi;Yoda, Tamae;Kanosue, Kazuyuki
由热刺激引起的感觉（与温度有关的感觉）可分为两类，“温度感觉”和“热舒适”。“虽然有几项研究调查了温度感觉的区域差异，但对不同身体区域热舒适性的敏感性差异知之甚少。在本研究中，我们研究了区域差异的温度相关的感觉，特别注意热舒适。健康男性受试者坐在温和的热或冷的环境中，局部冷却或温暖的水灌注刺激。刺激的区域是面部、胸部、腹部和大腿。受试者报告了刺激区域的温度感觉和热舒适度，以及全身热舒适度。在轻度热暴露期间，面部冷却是最舒适的，面部加热是最不舒服的。另一方面，在轻度冷暴露期间，面部的加热或冷却都没有重大影响。胸部和腹部的特征与面部相反。在全身冷暴露期间，胸部和腹部的局部加温确实产生了强烈的舒适感。这项研究中看到的热舒适表明，如果有机会，人类会优先在高温下冷却头部，并在寒冷中保持躯干区域的温暖。不同区域的热舒适性的质的差异不能仅仅用外周热感受器的密度或性质来解释，因此必须反映中枢神经系统的处理机制。
Sensations evoked by thermal stimulation (temperature-related sensations) can be divided into two categories, "temperature sensation" and "thermal comfort."Although several studies have investigated regional differences in temperature sensation, less is known about the sensitivity differences in thermal comfort for the various body regions. In the present study, we examined regional differences in temperature-related sensations with special attention to thermal comfort. Healthy male subjects sitting in an environment of mild heat or cold were locally cooled or warmed with water-perfused stimulators. Areas stimulated were the face, chest, abdomen, and thigh. Temperature sensation and thermal comfort of the stimulated areas were reported by the subjects, as was whole body thermal comfort. During mild heat exposure, facial cooling was most comfortable and facial warming was most uncomfortable. On the other hand, during mild cold exposure, neither warming nor cooling of the face had a major effect. The chest and abdomen had characteristics opposite to those of the face. Local warming of the chest and abdomen did produce a strong comfort sensation during whole body cold exposure. The thermal comfort seen in this study suggests that if given the chance, humans would preferentially cool the head in the heat, and they would maintain the warmth of the trunk areas in the cold. The qualitative differences seen in thermal comfort for the various areas cannot be explained solely by the density or properties of the peripheral thermal receptors and thus must reflect processing mechanisms in the central nervous system.