True Strange Library

The curious collection of a slightly mad scientist

Language and tool-making skills evolved at same time, study says

Research by the University of Liverpool has found that the same brain activity is used for language production and making complex tools, supporting the theory that they evolved at the same time.

Researchers from the University tested the brain activity of 10 expert stone tool makers (flint knappers) as they undertook a stone tool-making task and a standard language test.

Brain blood flow activity measured

They measured the brain blood flow activity of the participants as they performed both tasks using functional Transcranial Doppler Ultrasound (fTCD), commonly used in clinical settings to test patients’ language functions after brain damage or before surgery.

The researchers found that brain patterns for both tasks correlated, suggesting that they both use the same area of the brain. Language and stone tool-making are considered to be unique features of humankind that evolved over millions of years.

Darwin was the first to suggest that tool-use and language may have co-evolved, because they both depend on complex planning and the coordination of actions but until now there has been little evidence to support this.

Dr Georg Meyer, from the University Department of Experimental Psychology, said: “This is the first study of the brain to compare complex stone tool-making directly with language….

http://phys.org/news/2013-09-language-tool-making-skills-evolved.html

2 comments on “Language and tool-making skills evolved at same time, study says

  1. Cheng
    September 4, 2013

    Language was invented the second someone accidentally hit there thumb with a hammer fashioned from a lump of rock.

    • Xeno
      September 6, 2013

      Watch your language!😉

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This entry was posted on September 3, 2013 by in Uncategorized.
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