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Thursday, May 25, 2017

The three-dimensional map of the location of words in the human brain

A group of scientists representing the University of California at Berkeley, presented an unusual three-dimensional map of the cerebral cortex, where you can see which departments respond to different concepts, with which one is confronted. This illustrates the so-called semantic structure of the brain allows, in particular, to see that understanding language is responsible the entire person’s brain, not its individual parts.

photo: morguefile.com

According to experts, these cards, to see how the human brain responds to different words and concepts has never been created. In order to correct this omission, the authors and several volunteers participated in the experiment in which man was placed in the MRI unit and read out to him the different words and texts, keeping an eye on the activity in his brain. If a certain word caused the blood flow to a certain area of the brain is, according to the researchers, meant that in some way responded to its meaning. After collecting data, specialists on the basis of the “distributed” word on the map.

Although in the brain and there are areas that “generally” responsible for speech and language (they are located in the temporal lobe of the left hemisphere) for the perception of certain words, as demonstrated by the map, used by more than two-thirds of its surface. In this case, each of the participants in the study of the word “distributed” in the brain in different ways, but in General different concepts gravitated to those parts of the brain, which in previous studies have been found the dependence with the appropriate emotions and aspirations. Similar concepts are usually “grouped” in the same plot.

However, many words cause the response in several brain areas — for example, the top word that has many meanings in the English language, reacted as the area with words on the theme of landscape or buildings, and those in which “contained” the concepts associated with math.

The results of his research scientists published in the journal Nature.

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