A New Study Suggests The Shape Of Human Brains May Be The Key To Why We Outlived Neanderthals

Reply Tue 1 May, 2018 05:08 am
April 29, 2018

When our early human ancestors slowly migrated away from Africa 40,000 years ago, the Neanderthals that had flourished in Europe for over 200,000 years began to die off, and a new study suggests that it may be the shape of human brains, rather than their size, that is one of the key reasons that humans eventually triumphed over the Neanderthal species.

For a long time, anthropologists have wondered what it was that gave humans an edge over Neanderthals, and now a research team consisting of neuroscientists, physical anthropologists, and mechanical engineers have worked together to try and recreate Neanderthal brains through the process of digital reconstruction, as Phys.org report.

After looking closely at the brains of humans and comparing them with those of Neanderthals, researchers have concluded that it wasn’t just the mere size that allowed humans to triumph in the end, but that the real key may have been in a different way that humans process information.

In order to build the digital reconstruction of the Neanderthal brains, scientists took four Neanderthal skulls and very carefully used the insides of these to take accurate measurements of their shapes.

Next, researchers obtained MRI scans from 1,000 humans so they could come up with a general average of the modern shape and size of the human brain.

Once researchers had the digital reconstructions of the Neanderthal and human brains, they used a special computer program so that the image of the human brain could be warped, thereby neatly fitting the human brain scan inside the skull of the Neanderthal.

Scientists were able to immediately recognize that while the human and Neanderthal brains were not dissimilar in size, the shape of the brains was actually quite different. Most notably, the cerebellum of the Neanderthal brain was much smaller than that of the human brain.
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and read this:
Brain shape and genetic ancestry linked
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mark noble
Reply Tue 1 May, 2018 10:11 am
@Pamela Rosa,
We didn't outlive them.
They were 'shutdown', intentionally.

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Reply Wed 2 May, 2018 04:38 am
@Pamela Rosa,
Thanks for sharing this fascinating study, Pamela Rose!
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