Rizzi, Alessandro, Alice Plutino, Diego Vecchi, Anton Giulio Guadagno, and Marco Lucertini. Dynamic range of luminance perception in acute hypobaric hypoxia. High Alt Med Biol. 23:313–318, 2022.—The effects of acute hypobaric hypoxia, as potentially experienced in high altitude flight, on the detection of low contrast targets within a high dynamic range (DR) of luminance were investigated. The tests were performed after 10 minutes of adaptation to an ambient luminance level of 0.2 lx. Twenty-four individuals were exposed to hypobaric hypoxia at an altitude of 18,000 ft (5,490 m) inside a hypobaric chamber and were asked to identify the darkest one perceived from a grid of progressively less luminous patches. The results were compared with those obtained by the same subjects at sea level. The results indicate a global reduction of the DR perception during hypoxia, with a mean decrease of 0.023 cd/m² (standard deviation ±0.064), which resulted statistically significant (p < 0.05). No significant correlations with oxygen saturation levels were observed. These findings might have practical applications in the design of cockpit's instruments, especially those dedicated to night-time flight missions at high altitudes.

中文翻译：

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急性低压缺氧时亮度感知的动态范围

Rizzi、Alessandro、Alice Plutino、Diego Vecchi、Anton Giulio Guadagno 和 Marco Lucertini。急性低压缺氧时亮度感知的动态范围。高 Alt 医学生物学. 23:313–318, 2022.—研究了在高空飞行中可能经历的急性低压缺氧对高动态亮度范围 (DR) 内低对比度目标检测的影响。测试是在适应 0.2 lx 的环境亮度水平 10 分钟后进行的。24 个人在 18,000 英尺（5,490 米）的高度暴露在低压舱内的低压缺氧环境中，并被要求识别从亮度逐渐降低的网格中感知到的最暗的那个。将结果与同一受试者在海平面上获得的结果进行了比较。结果表明缺氧期间 DR 感知的整体减少，平均减少 0.023 cd/m ²（标准差±0.064），这在统计学上显着（p  < 0.05）。未观察到与氧饱和度水平的显着相关性。这些发现可能在驾驶舱仪表的设计中有实际应用，尤其是那些专用于高海拔夜间飞行任务的仪表。