Rude language and tools were born at the same time

The new study demonstrates Darwin's hypothesis that humans can talk at the same time to know how to build primitive tools.

Researchers from the University of Liverpool, UK, conducted brain activity tests of 10 stone tool production experts. Participants were asked to perform a tool-making exercise and a language test.

Scientists measured blood circulation activity in participants' brains when they performed these two tasks, using transcranial ultrasound (fTCD ) , a method of testing a patient's language function.

Prehistoric people can speak and build primitive tools at the same time.(Photo: Phys.org)

According to research results, brain activity occurs similarly when participants perform tool making and when they test the language, it is shown that these two functions share the same brain region.

Dr. Georg Meyer, from the Department of Psychology at the University of Liverpool, said: "There is a similarity in blood circulation levels in the first 10 seconds when making tools and language testing. This shows both The two functions depend on a brain region and are consistent with the theory that tools and languages ​​evolve together. "

The use of language and tool manufacturing is considered to be the unique quality of humanity during evolution over millions of years.

Darwin was the first to propose the hypothesis that using tools and languages ​​could co-evolve together, because both functions were based on complex planning and regular coordination of the dynamic. However, so far there is little evidence to support this hypothesis.