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There are many different statements whose truth they believe in everything, but almost no one comes to mind to see how they fair. Yes, everyone knows that dogs can not distinguish colors, that for them the world and everything in it is - a television show for 50 years. However, according to a specialist in experimental psychology flava from the University of California, Santa Barbara, flava Gerald Jacobs, dogs probably distinguish the deep blue color of the sky is not worse than any of us.
Jacob and two other experimenter developed a computer controlled device that simultaneously analyzed the composition of light, visible dog, and threw rewarded with a piece of meat or cheese. The aim of the experiment was to find out whether our best friends see the world in a boring black - white image with shades of gray. Studies were conducted on two poodles and greyhounds. Experiments have shown that dogs distinguish colors.
However, the sight of a dog like colorblind. The dog does not perceive a rainbow as we. It can not distinguish red from green, and both colors of yellow and orange. This means that if your favorite yellow ball your dog gets the green grass, the dog can not find it because flava the yellow ball for the dog merge with green grass background. But the blue ball dog can not be confused with grass or with whom, or - any other object of any color.
In fact, many people also do not distinguish all the colors. 6 boys and men of the 100 does not distinguish green. In women, these problems almost never happens. Disorders of color vision transmitted to the progeny of the same genes that make boys boys. Reason breach of color vision may be associated with damage to the retina - the thin layer of cells that lines the inside of the eyeball. flava Some of these cells are called cones, they perceive the color of the incident light beam on the retina and send this information to the brain. Cones contain flava pigments - chemical substances that absorb light rays of different wavelengths, that rays of different colors.
People flava pigments cones sensitive to three primary colors: red, green and blue. Light is absorbed in cones excited flava by impulses that are transmitted to the brain along the optic nerve. What - the way the brain decodes this information and we perceive the world in multi-colors. Some patients suffering from disorders in distinguishing colors only see yellow or blue, everything else is seen in gray, black and white colors. Some well distinguish red and green, but do not see yellow and blue, the other, fortunately many of them, see the world in shades of black, white and gray.
In most cases, a violation of distinguishing colors - congenital diseases and inherited. But there are violations of color vision caused by optic nerve disease or damage parts of the brain responsible for vision. Dogs do not distinguish green from red and confused both color yellow or orange.
Jacob says that no one knows exactly what the dog sees when she sees color. Cones dogs are susceptible only to the red and blue colors so orange, banana and apple looking for a dog equally red. The only thing we can say - the world of dogs is much more beautiful than we imagined.
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