Boulze D, Montastruc P, Cabanac M
Physiol Behav. 1983 Jan;30(1):97-102. doi: 10.1016/0031-9384(83)90044-6.
The influence of water temperature on intake and affective ratings was explored in human subjects. Dehydration whether by profuse sweating (body weight loss: 289 +/- 11 g, N = 20) or mountain climbing (body weight loss: 1660 +/- 58 g, N = 20) resulted in the same intake. Maximal intake was observed for water at 15 degrees C with respectively 199.0 +/- 17.0 ml and 222.7 +/- 17.4 ml. Colder and warmer water was ingested to a lesser extent. When 20 subjects were allowed to mix water to their preferred temperature, they chose 14.9 +/- 1 degree C and drunk 211.0 +/- 19.5 ml. Votes on a pleasure/displeasure scale increased from 50 degrees C to 0 degree C. Cold water was therefore both more pleasureable and less drunk. Dehydration resulted in a negative alliesthesia for warm water. Positive alliesthesia for cold water was probably the result of hyperthermia rather than dehydration.
研究了水温对人体受试者饮水量和情感评分的影响。无论是通过大量出汗（体重减轻：289±11克，N = 20）还是爬山（体重减轻：1660±58克，N = 20）导致的脱水，饮水量相同。观察到15摄氏度的水摄入量最大，分别为199.0±17.0毫升和222.7±17.4毫升。温度更低和更高的水摄入量较少。当20名受试者被允许将水混合到他们喜欢的温度时，他们选择了14.9±1摄氏度，并饮用了211.0±19.5毫升。在愉悦/不愉悦量表上的投票从50摄氏度到0摄氏度增加。因此，冷水既更令人愉悦又饮用量更少。脱水导致对温水产生负性变适感。对冷水的正性变适感可能是体温过高而非脱水的结果。
