Marks on the brain in its early days are so rapid that many times it becomes difficult because of it. For example, a duckling hatches from an egg and assumes the first moving object to be its mother. This is a successful strategy because the first thing you see is the mother, but it can also be confusing. Conrad Lawrence experimented with it in the 1930s. After hatching, they came in front of them and then these babies stayed behind them.
It was only a matter of time before the duck became a mother's symbol, after which the door closed. But there is more to life than meets the eye. For example, where is the river, where will the food come from? Or learn to recognize other ducks throughout life.
Sensitive periods also vary for different tasks. Not all areas of the brain are the same plastic.
Is there a pattern behind it?
Researchers studied the visual cortex to find out what happens after an eye injury in an adult. Will the neighboring areas take over this unused tissue? No, that hasn't changed much. Inactive area remained inactive. This response was unexpected. This is not the case in touch and motor areas. And that's why we can learn gliding or skating when we grow up.
So why this difference? Why does the primary visual cortex lock after a few years? That's why an eight-year-old boy who suffers from squinting stops seeing with one eye forever. Even a paralyzed 58-year-old patient learns to use a robotic arm?
Different areas of the brain follow different schedules of flexibility. Some are sensitive for a short time, some for a while. Some things don't change, some things happen all the time.
Is there a general rule behind it? It has to do with the structure of the information being processed in a section. Parts are for the whole age to learn. Increase vocabulary, for example. Recognize and store new faces. Ability to learn the way of a place. Flexibility will remain here. Some areas will remain stable. For example, ability to see, how to chew, general grammar rules. And here's a quick fix.
The next question is how does the brain know which part is to be locked quickly and which part is not? Is it in the genes? It may be part of it, but it also has to do with the outside world. If the data structure is stable, then the system that processes it will be mature first.
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The organization of information is layered. For example, the lower level of vision is the identification of colors, angles, angles. Your street map, car model, etc. on the upper levels. The lowest levels of information are learned at the very beginning of life, and once they become strong, change is rare.
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To illustrate this, the library can be seen as such an information system. Some things need to be locked in the beginning. Building architecture, shelf space, Dewey decimal system for organization. When this is done properly, the collection of books will continue to change throughout the life of the library. Transportation will continue. Old books will be retired, new titles will be added. The library could also be expanded. A good library can easily edit and expand on a solid foundation. There is no need to re-examine what the rules are for the organization.
Closing the right doors at the right time is important for the next journey.
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The same is true of genetics. In science, the genome is still being understood, but even in genes, it seems that some areas are more locked than others. They are difficult to change, while some areas of the chromosome have more variation. Variation in genetics is also a reflection of the features of our world. For example, mutations in the pigment genes of skin color will be more common, but the genes that encode the sugar-breaking protein are stable because it is an essential feature.
If living beings are seen as an information machine, it becomes a very sophisticated map, a waterfall of layered information.
The information that is passed down from generation to generation is in the genes. There are also different levels of this information. Some of which are rarely changed. Changes in some are more common. Above is the layer of epigenetics that controls the expression of these genes. Some information is passed down from one generation to the next. Above all, the level of information is in the individual organism itself. Some of this information remains stable throughout life, some for a long time, some change over time, some is very temporary.
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Every living thing is itself a unit of a large web of information and this unit itself is the result of all the waterfalls of information. Even those that have accumulated over billions of years. Even that which has been imprinted throughout the ages. Even what he got today. The act of breaking down sugar, the division of cells, the synthesis of organs, the fight against germs, the fear of darkness, love and desire, names and faces, identities and beliefs, knowledge and illusions, the list of deals or someone's phone number ... This information machine has layers of information in a variety of ways.
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