Kojo I, Pertovaara A
Int J Neurosci. 1987 Feb;32(3-4):875-80. doi: 10.3109/00207458709043342.
The effect of stimulus area and adaptation temperature on warm and heat pain threshold were studied in healthy human subjects using a contact thermal stimulator. The stimulus area was varied in the range of 1.3 to 11.8 cm. Both the warm and heat pain thresholds decreased with increasing stimulus surface. Heat pain and warm thresholds were equally affected by the stimulus surface. The adapting temperature was varied in the range 25-35 degrees C, and warm thresholds were elevated with increasing adaptation temperature. The change of heat pain thresholds with increasing adapting temperature was not significant. Thus, there are both differences and similarities concerning how the different stimulus conditions affect heat pain and warm thresholds.
使用接触式热刺激器，在健康人体受试者中研究了刺激面积和适应温度对温痛和热痛阈值的影响。刺激面积在1.3至11.8平方厘米范围内变化。温痛和热痛阈值均随刺激表面面积的增加而降低。热痛阈值和温痛阈值受刺激表面面积的影响程度相同。适应温度在25至35摄氏度范围内变化，温痛阈值随适应温度的升高而升高。热痛阈值随适应温度升高的变化不显著。因此，不同刺激条件对热痛阈值和温痛阈值的影响既有差异又有相似之处。
