Our visual perception of the world — seeing form and colour or navigating the environment — depends on the interaction of light and matter in the environment. Light also has a more fundamental role in regulating rhythms in physiology and behaviour, as well as in the acute secretion of hormones such as melatonin and changes in alertness, where light exposure at short-time, medium-time and long-time scales has different effects on these visual and non-visual functions. Yet patterns of light exposure in the real world are inherently messy: we move in and out of buildings and are therefore exposed to mixtures of artificial and natural light, and the physical makeup of our environment can also drastically alter the spectral composition and spatial distribution of the emitted light. In spatial vision, the examination of natural image statistics has proven to be an important driver in research. Here, we expand this concept to the spectral domain and develop the concept of the ‘spectral diet’ of humans.

我们对世界的视觉感知-看到形式和颜色或在环境中导航-取决于环境中光和物质的相互作用。光线在调节生理和行为节律以及褪黑激素等激素的急性分泌和机敏性改变方面也起着更根本的作用，短时，中时和长时间尺度下的光照不同对这些视觉和非视觉功能的影响。然而，现实世界中的曝光模式本质上是混乱的：我们进出建筑物，因此暴露于人造光和自然光的混合之下，而且我们环境的物理组成也可以极大地改变光谱的组成和空间分布。发出的光。在空间视野中 事实证明，对自然图像统计数据的检查是研究的重要推动力。在这里，我们将这一概念扩展到光谱领域，并开发了人类“光谱饮食”的概念。