Leung N K, Bradshaw C M, Szabadi E
Department of Psychiatry, University of Manchester, U.K.
Br J Clin Pharmacol. 1992 Apr;33(4):458-60. doi: 10.1111/j.1365-2125.1992.tb04069.x.
Miotic responses to brief light stimuli were studied in healthy volunteers under two ambient temperature conditions, 22 degrees C and 40 degrees C. The latency and amplitude of the light reflex did not differ between the two conditions, but the recovery time of the reflex was significantly shorter under the 40 degrees C condition than under the 22 degrees C condition. The results are consistent with the hypothesis that exposure to high ambient temperature results in an increased sympathetic drive to the iris dilator muscle but does not influence the parasympathetic light reflex.
在22摄氏度和40摄氏度这两种环境温度条件下，对健康志愿者的缩瞳反应进行了研究，该反应是针对短暂的光刺激。两种条件下光反射的潜伏期和幅度并无差异，但在40摄氏度条件下反射的恢复时间明显短于22摄氏度条件下的恢复时间。这些结果与以下假设一致：暴露于高环境温度会导致虹膜扩张肌的交感神经驱动增加，但不会影响副交感神经的光反射。
