Daltonism or life without color

Content

  • Color and his role in human life
  • What they see and do not see a don
  • Tests on Daltonism
  • The effect of daltonism on life and man's career


  • Color and his role in human life

    As a rule, from early childhood, we learn about the fact that roses are red, the sky is blue, grass - green. For many, this is an indisputable fact. But still some people are not able to distinguish these colors. What to do bloomanomalam? Does their life look like black and white cinema? Colors play an important role in our life. Some colors we associate with beauty, for example, how nice to watch the son of the Red Sun. Other colors carry some information, for example, for many years of human existence, purple color acquired the value of something royal, and the red became associated with passion. Colors even affect our mood and condition - no wonder the people appeared such expressions as «Green from anger», «blur out of shame», «Watch with angrily» and T.D. Moreover, colors are symbolic, for example, red gives us a signal «stay», green - «go».

    Psychologists argue that certain colors may even cause drowsiness or hunger. So choosing yourself outfit remember that the color is very important.


    What they see and do not see a don

    Daltonism or life without colorHow can you see the world in other people's eyes? It's hard to say which colors are different people, since the color perception is very subjective. As possible with confidence to declare that all people are equally perceived red? Perhaps for someone, a red box seems bright red, and for the other - light red. You can easily argue with someone about the fact that the pants of a dark blue or black color, but it is not possible to determine exactly who is closest to the truth, because it is not possible to look at the world through the eyes of another person.

    If you look at the rainbow, the usual person will see seven main flowers leatherSPSF - «Every hunter wants to know where the pheasant sits». Where: K - red; O - Orange, Well - Yellow, Z - Green, G - Blue, C - Blue, F - Violet. But what will see a dongeon or a person with a violation of color vision? Nothing special and fun.

    The colors of the rainbow help scientists understand that they see people suffering from deteanopia and protoropy (lack of perception of red and green flowers), as well as Tritanopia, and how it affects their world vision.

    Dateranopia is a weakness of red perception when a red dress seems green-gray, the perception of purple color and skin color changes.

    Protandopia is very similar to the deteransopy, only in this case the red dress seems the darker gray.

    Tritanopia - when yellow is perceived as pale pink. A person does not perceive orange at all, there is a distortion of blue and red shades. Man sees all objects in the shades of pink and blue colors.

    Trichromats with difficulty can determine pure green, yellow and red colors. They may not even notice the difference between purple and blue objects, since purple color partially consists of red.

    Monochromates perceive everything in the form of black, white and gray colors. So all the colors of the rainbow seem to be blurry slightly. On the other hand, some types of violation of color perception should be considered not an anomaly, but rather - a feature of sight. According to research by British scientists, people who are difficult to distinguish between red and green colors can distinguish many other shades. In particular, the shades of the khaki color, which seem to be the same people with normal vision. Perhaps, in the past, such a feature gave its carriers evolutionary advantages, for example, helped find food in dry grass and leaves.


    Tests on Daltonism

    Daltonism or life without colorOne of the most popular tests was considered Ishihara plates (Ishihara Plates) or still called pseudo-chromatic signs. Such a testing system was designed specifically for checking the soldiers of the Japanese army to distinguish colors by Dr. Science Shinoba Ishihara (Shinobu Ishihara). The plates were circles with crooked watercolor paints with colored dots, in the middle of which the colors were withdrawn by the paints. But this test had its drawbacks - sometimes the colors of the background and the numbers were so different that it was impossible to notice them, or, on the contrary, the wrong light dimmed the color of the numbers, thereby complicating the task even for people with normal vision.

    When taking a fleet, each recruit must pass the color perception test. To check them use the so-called FALANT test, when the participants offer to the distance determine which light the lighthouse radiates. Simultaneously lights two lights from possible three - red, green and white. However, the light is passed through special «Filters», Due to what color «muffled». This is done so that the ranges cannot determine the light by its brightness. Such testing does not pass dichromates and most of the trichromates.

    It is believed that the most accurate results of the inspection of various types of color is given an anomaloscope. On one side of the screen, the subjects offer a certain color, for example, yellow, and on the other hand, a mixture of colors, such as red and green. The studied must mix two colors offered on the other side to obtain identical colors on both sides. People with normal vision do not have difficulty mixing colors, while the bloomanomals cannot achieve a positive result.


    The effect of daltonism on life and man's career

    Color blindness can limit human capabilities in the performance of certain professional skills. The vision of drivers, sailors and pilots is thoroughly examined, since the life of many people depends on his correctness. Color view defect for the first time attracted public attention in 1875., When in Sweden, near the city of Lagerlund, a train crash occurred, the trembed great victims. It turned out that the driver did not differ red, and the development of transport was at that time led to a wide distribution of color alarm.

    This catastrophe led to the fact that when admitting to work in the transport service, it was mandatory to evaluate the color. And now, if a person has revealed Daltonism, the rights to driving a vehicle to him, alas, «do not shine».

    The colors of the rainbow please us aesthetically and serve us with visual signposts, but whether we need it all? It is worth thinking about it.

    When the architect plans the building design, it takes into account all the little things so that guests are satisfied, in order for even people with physical disabilities feel conveniently. But does anyone take into account the color vision disorder? Probably because such disorders are invisible in the appearance of man, many people do not even think about it and do not try to do anything. After all, how can I explain to a person what a green color looks like, if he never saw him? Of course, this color can be tried to describe, but still a Daltonian will not be able to present it as ordinary people see him.

    In the daily life of the ranconies often feel disappointment. They try to buy non-rigid monophonic clothes to accidentally do not come to a party in a multicolored and incurred outfit. Children feel awkward during the drawing lesson, if pencils or paints do not have indicative designations. And the most, probably, hard to listen to when other people talk about beautiful, bright things, and you can't see them.

    And although the ranktonists cannot become pilots, electricians or makeup artists, there are a number of other professions in which they can show themselves. For example, graphic design. Do not make hasty conclusions. This work can really come in color. First, the design of sites is not always based only on different colors to allocate important information. Sites designers also use other ways to attract attention, for example, different font or contrast. Secondly, all colors on the Internet are arranged in a hexadecimal system. Blue color, like everyone else, has its own code - # 0000FF. Therefore, people who do not distinguish with colors can remember the codes of shades and calmly color the pages of sites.

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