Big Brain: The Origins and Future of Human Intelligence by Gary Lynch

By Gary Lynch

Our gigantic brains, our language skill, and our intelligence make us uniquely human. But slightly 10,000 years in the past (a mere blip in evolutionary time) human-like creatures referred to as "Boskops" flourished in South Africa. They possessed awesome beneficial properties: forebrains approximately 50% greater than ours, and envisioned IQs to match--far surpassing our own. Many of those large fossil skulls were came across over the past century, yet such a lot people have by no means heard of this medical marvel.Prominent neuroscientists Gary Lynch and Richard Granger examine the contents of the Boskop mind and our personal brains this day, and arrive at startling conclusions approximately our intelligence and creativity. Connecting state of the art theories of genetics, evolution, language, reminiscence, studying, and intelligence, Lynch and Granger convey the results of enormous brains for a vast array of fields, from the present cutting-edge in Alzheimer's and different mind issues, to new advances in brain-based robots that see and speak with us, and the ability through which neural prosthetics-- alternative elements for the brain--are being designed and tested. The authors demystify the complexities of our brains during this interesting and available ebook, and provides us tantalizing insights into our humanity--its previous, and its destiny.

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Extra resources for Big Brain: The Origins and Future of Human Intelligence

Sample text

But, in reality, we don’t need to have five fingers: three or four would be fine; six would do well. We certainly don’t need to have the same number of toes as we do fingers! It’s just that the genes for one are yoked to those for the other, and there wasn’t enough need to change them; we do fine with them as they are. We don’t need to have hair on our chins but not on our foreheads. Our noses needn’t be between our eyes and our mouths, and our ears needn’t be on the sides. They’d work equally well, very possibly better, in slightly different configurations.

But over the course of a few weeks, the patients got astonishingly better: they came to hear recognizable sounds, and in some cases even regained the ability to engage in conversation. A standard hearing aid was useless, but these implants were almost miraculous. Why did the non-cochlear implants do so well? There are two important reasons. First, they actually captured one of the most important principles that underlies the cochlea: the selective and differential amplification of sound in different ranges, as opposed to hearing aids, which simply turned everything up.

But what would happen if it were replaced with simple filtering devices that only enhance sounds that matter? After all, while silicon cochleas were remarkable engineering achievements, they were rare, and tricky, and expensive, whereas filters were well-understood, and small, and low-power, and cheap to produce. Sure enough, something remarkable happened. In patients who had lost their hearing, these filter banks were attached directly to the auditory nerve—the wire bundle that usually connects the cochlea to the brain.

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