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Тысячи / Synesthesia / Пересказ синестезия

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Modern scientists have known about synesthesia since 1880.

About four years ago we began to uncover brain processes that could account for synesthesia. A common explanation of synesthesia is that these people are experiencing childhood memories and associations. This theory does not answer why only some people retain such memories.

Another common idea is that synesthetes are being metaphorical when they, for example, describe the note C flat as "red".

We began trying to find out whether synesthesia is a genuine sensory experience. One approach is to ask the subjects "Is this just a memory, or do you actually see the color?", but it's not very effective.

To determine whether an effect is truly perceptual, psychologists often use a simple test called segregation. As a result we may conclude that only primitive features, such as color, can provide a basis for grouping different objects.

Experiments lead us to favor the idea that synesthetes are experiencing the result of some kind of cross wiring in the brain. We have now identified where in the brain and how such cross wiring might occur.

An understanding of the neurobiological factors at work requires some familiarity with how the brain processes visual information.

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