19 April 2021
Why people have been found to have big brains

Why people have been found to have big brains


As is known, humans are seen as the most intelligent creatures in the world. Maybe completely “smart” we are not, but at least we are the most advanced creatures when it comes to brain development. Request scientists they really want to know the reason for this situation.

Many people are sure to answer this question. evolution but why do our brains great apes and from chimpanzee The real answer that it developed differently has long been seen as a mystery. Cell magazineahead a new study publishedThe first truth about how the growth of the human brain differs from our closest mammalian relatives insights offers.

What makes us human?

According to research, humans are largely to physical size they can do many things depending on. Our brain organs chimp and from monkeys It’s much bigger, and the large number of neurons our brains have compared to primates is what helps us differentiate them.

Researchers in the lab small brain tissue by cultivating samples, chimp and to monkeys by comparison, they were able to detect a significant difference in the early development of the human brain. According to the detection made ipeople and primatlar When first developing, their brains neural progenitor cells It is built from cells known as

These multiplied over and over are stem-like cells and finally neurons creates. According to the explanation of scientists the equation is simplebecause more progenitor cellmeans more neurons further down the road, and human progenitor cells, of monkeys and chimpanzee progenitor it turns out to behave differently from its cells.

Researchers, primatlarda progenitör While observing the proliferative behavior of the cells, they discovered that the cells continued to multiply at a high rate for roughly five days before maturing and slowing down. This is considered to be much longer than mice, whose cells seem to mature within hours.

The study states that the extended time frame means that primates have more brain power and larger brain organs. However, it is stated that human ancestor cells take this to the next level.

Also Research, human progenitor reveals that his cells continued to multiply for a full week before transitioning. Since the proliferation of cells is an exponential event, it is stated that replicating for an extra two days means much more cells and ultimately neurons in humans.

Lead author of the study Dr. Madeline Lancaster, says about the study;

“We found that a delayed change in the shape of cells in the early brain is sufficient to alter the course of development and helps determine the number of neurons made. It is noteworthy that a relatively simple evolutionary change in cell shape could have major implications for brain evolution. As far as I can remember, I feel we really learned something fundamental about the questions I was dealing with – what makes us human? “


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