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Researchers have developed a novel visual technology called Oz that uses precise laser stimulation to directly control individual cone cells in the human eye. This method bypasses the typical overlapping sensitivity of our photoreceptors, allowing for the selective activation of only medium wavelength cones. Consequently, subjects experienced the perception of a new, highly saturated blue-green color, named "Olo," which exists outside the range of colors reproducible by standard display technologies like RGB or CMYK. This unique color experience, likened to a hyper-saturated laser light, cannot be seen or printed using conventional methods because it relies on direct cellular stimulation unavailable in current devices. The creation of Olo demonstrates the potential for technology to generate color perceptions beyond the natural human visual gamut. Link: https://www.science.org/doi/10.1126/s... #brain #eyes #eye #rods #cones #stimulation #neuroscience #perception