The particle nature of light, revealed 100 years ago by Compton's experiments conducted at Washington University, is crucial for understanding the most basic facts about visual perception. I will explain why, discuss differences in visual perception across the animal world and among humans, and describe how these insights suggest possible technologies for expanding visual perception.

This lecture is being presented as part of the Compton Centennial Celebration honoring 100 years since Arthur Holly Compton discovered the dual particle/wave nature of X-rays and is sponsored by the William C. Ferguson fund.

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