Previous research has shown that the human brain was built thousands of years ago. to shrink showed. A study published last year concluded that the brains of people who started building modern cities 3,000 years ago shrank. It has been said that this may have happened because our ancestors’ ability to store information externally in social societies reduced the need for large brains.

The authors of a new study published last week in Frontiers in Ecology and Evolution rejected this hypothesis and shared their thoughts on this increasingly popular situation in the scientific world.

Researchers think the human brain hasn’t changed much in the past 30,000 years.

Scientists from the University of Las Vegas, Nevada (UNVL) in the US used the research conducted last year. by analyzing data rejected the findings. The team used these expressions by stating that many innovations and historical events, such as the development of the Chinese writing system and the rise of the New Kingdom of Egypt, occurred during the specified time period.

One of the researchers, Brian Villamore, said:We reexamined the dataset from last year’s research and found that the human brain We found that it hasn’t changed in the last 30,000 years. “Based on this data, we have not been able to detect a reduction in modern human brain size at any time since the beginning of our species.” Villamore too in the past 300,000 years He also noted that they think they may not have experienced any change.

The UNVL team found that more than half of the 987 skulls examined only represent the last 100 years of a time span of 9.8 million years; Therefore, with regard to the size change: not giving enough information say. In addition, the team says the emergence of agriculture and complex societies occurred at different times around the world, requiring variation in the timing of skull changes. The researchers add that last year’s data only sampled 23 skulls from the period critical to the hypothesis.

Since the origin of our species, much research has been done on the shrinkage of the human brain. However, experts believe that these hypotheses would fail if there really were no change in size. revaluation thinks it should.