This website use cookies and similar technologies to improve the site and to provide customised content and advertising. By using this site, you agree to this use. To learn more, including how to change your cookie settings, please view our Cookie Policy
Pocketmags Digital Magazines
GB
Pocketmags Digital Magazines
   You are currently viewing the United Kingdom version of the site.
Would you like to switch to your local site?
Digital Subscriptions > Newsweek International > 29th June 2018 > This Is Your Brain on Neurons

This Is Your Brain on Neurons

A new discovery offers clues to when human brains evolved beyond those of chimpanzees

GENETICS

D. ROBERTS/SCIENCE PHOTO LIBRARY/GETT

CHIMPS AND BONOBOS—OUR CLOSEST RELATIVES, EVOLUTIONARILY SPEAKING—SHARE ABOUT 99 PERCENT OF OUR DNA. GORILLAS clock in at 98 percent. So what genes distinguish humans? In the journal Cell, researchers at the University of California, Santa Cruz, report their discovery of three nearly identical genes, found only in humans, that seem to play a critical role in one of our unique features, the development of a larger brain. About 3 million or 4 million years ago, just when our ancestral brains enlarged, the triplet of genes, called Notch (named after the shape of a fruit fly’s wings), appeared. They help guide the slow maturation of the human brain and the profusion of neurons in the neocortex, two features that proved key to the evolution of higher functions like reasoning and language. These genes may also play a part in neurological disorders, including microcephaly, autism and schizophrenia. Continued research of the human-only Notch genes could improve our understanding of these conditions, as well as brainpower in general. —Jessica Wapner

READ MORE
Purchase options below
Find the complete article and many more in this issue of Newsweek International - 29th June 2018
If you own the issue, Login to read the full article now.
Single Issue - 29th June 2018
£4.99
Or 499 points
Annual Digital Subscription
Only £ 0.65 per issue
SAVE
87%
£32.99
Or 3299 points
Monthly Digital Subscription
Only £ 0.94 per issue
SAVE
80%
£3.99
Or 399 points

View Issues

About Newsweek International

‘This Is What a Black Man Can Do’ - Two decades after apartheid, South Africa is still struggling to return land to black citizens.