Stripes dresses in a British magazine, 27 February 2015 – Rui Vieira / AP / SIPA

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The conclusion of a phenomenon worthy . Nearly three months after the “dress gate” or “case” of the multicolored dress that gently rocked the global Internet, three teams of scientists who have looked at the bottom line, color perception, published Thursday the results of their work in scientific publishing Current Biology , hoping to get everyone to agree and, it must be said, to move on.

The blue, this color ambiguous

In one study, Michael Webster, a psychologist at the University of Nevada, draws attention to the ambiguity of the color blue, and especially our inability to distinguish blue object of an object illuminated by a blue light. He noted that the human eye is however very well the difference, for example, between a white paper illuminated by a red light and a red paper in white light.

For the study, reports the New York Times , Michael Webster asked students if they saw the stripes of blue or white dress. The answers were mixed. However, after reversing the colors (yellow becomes blue), 95% of students identified yellow and black dress.



People perceive differently daylight

This is Karl Gegenfurtner, a psychologist at the University of Giessen, who says it. He asked 15 volunteers to select the color of the dress on a customizable color chart and estimates concluded that the pixels of the dress are close to the blue spectrum and yellows we see from sunrise to sunset. This would make it more difficult for us humans to discern the color of the light and therefore, that of the dress.



Older people tend to see the white dress and gold

Bevil Conway, a neuroscientist at Wellesley College near Boston, asked 1,400 people, including 300 who had never seen the dress, what colors they saw. He noticed that older people saw the rather white and gold while the younger gazed into his blue and black splendor (the true colors of the dress). The last scientific reports that the poor quality of the photograph opened the door to interpretation.

“This research is valuable from a scientific point of view,” says neuroscientist David Brainard, University Pennsylvania, “as they move the discussion on the dress to an area where we have real data on the phenomenon, beyond the tens of thousands of tweets. “These tweets will have at least helped to focus the world of science.