New color or not events? A team of scientists claims to have discovered a new color, never perceived before. These American researchers, who published their conclusions this Friday, April 18, in Science, the advances on Friday, April 18, worked by sending laser pulses in the eyes of 5 volunteers, to stimulate retinal cells.
Result: the perception of a bluish green tone. “From the beginning we had predicted that it would be an unprecedented color signal, but we did not know what the brain would do,” said our Guardian Ren NG colleagues, an electrician engineer from the University of California in Berkeley and one of the authors of the experience, to our colleagues. “It was impressive. He is incredibly saturated,” he said.
Not visible to the naked eye
The scientists baptized this “Oro” color, while stressed that it was difficult to describe, since it was not visible to the naked eye. “There is no way to transmit this color in an article or on a screen,” said Austin Roorda, a scientist specialized in vision within the team, still with our colleagues.
“The idea is that this is not the color we see (…) the color we see is a version, but it is completely ridiculous compared to Olo experience,” he said.
To reach the “Olo”, the researchers have mapped the human retina to determine the position of the M. The last cones are sensitive to the median wavelengths of light and the green light, unlike S (blue light), sensitive to waves and cones l, sensitive to long waves (red light).
Then comes the laser, which was used to scan the retina and send a small pulse of light to stimulate the cell, before going to the next cone. This is how researchers could observe the “Olo”, which exceeds the natural range of the eye because the cones m are stimulated almost exclusively.
An experience with “limited value”?
However, this discovery was divided into the scientific community. “This is not a new color,” Guardian John Barbur punished, a vision specialist at the University of City St George in London.
“It is a more saturated green that can only occur in a subject with a normal red green mechanism, when the only contribution comes from more,” he said, ensuring that the results of US researchers only have “limited value.”
Berkeley’s team is convinced that research can help better understand the world’s visual perceptions, as well as help medications, especially for cases of daltonism or other diseases that affect the view.
Source: BFM TV
