In a groundbreaking study, scientists have enabled humans to see a color beyond the conventional visual range, achieving this through a precise laser technique. By stimulating the retinas of five participants, they observed an extremely saturated bluish-green color that had never been seen before. The research, conducted by a UC Berkeley team, exploits the intricate workings of cone cells in our eyes, which normally have overlapping sensitivities to light wavelengths. This innovative approach could lead to new understandings of visual perception and color science.
Ng emphasizes their method needed to bypass traditional limitations of light wavelengths: 'There's no light in the world that can activate only the M cone cells because, if they are being activated, for sure one or both other types get activated as well.'
In this pioneering study, the research team developed a technique called Oz, aiming to deliver precise light doses that allowed participants to perceive a saturated bluish-green color beyond the visible spectrum.
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