He has only anecdotal evidence to back his claims, however, so he´s invited scientists nationwide to put his device to the test. Biologists at the University of Arizona have expressed interest in using the collector to study moonlight´s effects on plant growth cycles but not yet on people. If nothing else, the collector offers a unique research opportunity. Although moonlight is reflected sunlight, its frequency and spectrum are unique and, so far, irreplicable, which makes it difficult to examine in a controlled, clinical fashion. â€It´s a hot area to understand the spectral effects of light on human health and physiology,â€ says Michael Gorman, a University of California at San Diego biopsychologist who has studied how hamsters react to light.