On Thursday February 26th will be remembered as the day the color of a garment divided humanity. Blue and black, or white and gold were the two options and both Twitter and Facebook , or Whatsapp exploited for this item. How can something like this happen?
The mystery of how half of humanity sees it differently lies in our mind.
The truth is that our brain does not work like a computer, and to interpret the colors have to pass a series of things. The light bounces off objects, and depending on the physical characteristics, will reflect only part of it. The whitish sunlight is a mixture of all colors -such as seen in the logo of Pink Floyd, where it enters a white beam, and a prism decomposes in the arcoiris-. What we understand as color corresponds to a certain wavelength of light. The blue dress absorbs all colors except blue, and reflects our eyes. This crosses our cornea and reaches the retina, where special cells (called rods and cones) that depending what wavelength are received, send one or another signal to our brain.
But the story does not end there. Before you can get an idea of the color of something, our mind analyzes the context, and tries to deduce what color is the light that illuminates it. Because a white object can be seen with the light of a cloudy day, with beige evening light, or red with white evening. And if we are in the shade, the blue light from the sky gives a tint of that color. If you know in advance who is white, or whether we are fully aware of the light source, our brain will “set” automatically to see white. In the image below, for example, we see that the selected cubes are clearly blue, and yellow. But explains Dr. Erin Goddard Cognitive Psychology, Macquarie University in Sydney, in reality the two are gray. What confuses us is the yellow or blue filter.
For the dress also happens something similar. The image does not allow us to see the light source do not know whether directly illuminated by the sun or the sky, so our brain arbitrarily chooses one of the two , and attempts to correct the color of one form or another.
What also helps is that the image of the dress has a lot of quality and colors are not fully defined. Experts of the journal Wired analyzed the image with Photoshop and extrayeron different areas of the same. What should be black, looks golden, or even orange in the upper part (due to saturation), and if many doubt that is blue or white, definitely appear to be white. But of course, could be interpreted as a target being illuminated by the light of heaven.
A third factor that could affect where many see it as different, is that all our screens They are different and are configured with different levels of brightness. If the image is too dark, it is clearly blue and black, and if you are very clear, is definitely white and gold.
For the avoidance of doubt, the dress is British designers Roman Originals, and It is blue and black . It is also sold in black, red and black or pink and black and white. Not available in white and gold.
The mystery of the dress, which might seem a frivolous debate forced us to learn more about how our brain works.
(*) Special Perfil.com
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