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Archive for the ‘neuroscience’ category: Page 891

Oct 17, 2015

Programming Hate Into AI Will Be Controversial, But Possibly Necessary

Posted by in categories: biotech/medical, education, neuroscience, robotics/AI

In the last few years, the topic of artificial intelligence (AI) has been thrust into the mainstream. No longer just the domain of sci-fi fans, nerds or Google engineers, I hear people discussing AI at parties, coffee shops and even at the dinner table: My five-year-old daughter brought it up the other night over taco lasagna. When I asked her if anything interesting had happened in school, she replied that her teacher discussed smart robots.

The exploration of intelligence — be it human or artificial — is ultimately the domain of epistemology, the study of knowledge. Since the first musings of creating AI back in antiquity, epistemology seems to have led the debate on how to do it. The question I hear most in this field from the public is: How can humans develop another intelligent consciousness if we can’t even understand our own?

It’s a prudent question. The human brain, despite being only about 3 pounds in weight, is the least understood organ in the body. And with a billion neurons — with 100 trillion connections — it’s safe to say it’s going to be a long time before we end up figuring out the brain.

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Oct 17, 2015

Changing The Pace: Your Circadian Rhythm Can Make You Age Faster

Posted by in categories: biotech/medical, life extension, neuroscience

We all have different circadian rhythms but they slow down during aging, and we may be able to do something about it.

Your body is in a state of constant flux and the circadian rhythm is its master regulator, controlling everything from sleep cycles to appetite and beyond. Jet lag is a side effect of a confused internal cycle as it adjusts to a new timetable. Shift work and irregular patterns of activity can also potentially cause some serious problems if sustained for a long period, including raising risk of type 2 diabetes, dementia and all cause mortality.

When researchers studied aging mice, they saw a progressive decline in levels of molecules called polyamines. These are involved with a number of processes, but particularly in cell growth and circadian rhythm. The drop in polyamines also coincided with a slowing of their circadian cycle — which increased disease risk.

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Oct 16, 2015

You can grow new brain cells. Here’s how

Posted by in categories: life extension, neuroscience

Can we, as adults, grow new neurons? Neuroscientist Sandrine Thuret says that we can, and she offers research and practical advice on how we can help our brains better perform neurogenesis—improving mood, increasing memory formation and preventing the decline associated with aging along the way.

Listen/View

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Oct 15, 2015

How Traveling to Deep Space In Cryogenic Sleep Could Actually Work

Posted by in categories: food, neuroscience, space travel

Our bodies aren’t meant for space. We require too much maintenance to speed through the stars. We need a steady supply of things absent from space — namely water, food and oxygen. We crave warmth but won’t find it in deep space, where the average temperature is −455 degrees Fahrenheit. Even if we could survive in an icy vacuum without sustenance, we’d probably go insane without distractions and room to move.

But aeronautic engineers believe they have found the key to solving that puzzle: put your space travelers to sleep. Long-term cryogenic and hibernative sleep may be the key to getting humans to Mars, and beyond. But it may first come to a spa near you.

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Oct 15, 2015

First Primitive Kidneys Grown From Stem Cells

Posted by in categories: biotech/medical, life extension, neuroscience

Scientists have managed to grow a miniature brain, and there’s a whole bunch of other so called ‘organoids’ we’re currently learning to perfect. We can now add kidneys to the tick box.


There have been a few mini-organ breakthroughs lately, and now we can grow simple kidneys in the lab too.

Regenerative medicine has incredible promise and provides hope that one day virtually any injury could be corrected. Scientists have managed to grow a miniature brain, and there’s a whole bunch of other so called ‘organoids’ we’re currently learning to perfect. We can now add kidneys to the tick box.

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Oct 14, 2015

Scientists Can Now Predict Intelligence From Brain Activity

Posted by in category: neuroscience

Science fiction is one step closer to reality.

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Oct 13, 2015

Ray Kurzweil’s Wildest Prediction: Nanobots Will Plug Our Brains Into the Web by the 2030s

Posted by in categories: engineering, nanotechnology, neuroscience, Ray Kurzweil

I consider Ray Kurzweil a very close friend and a very smart person. Ray is a brilliant technologist, futurist, and a director of engineering at Google focused on AI and language processing. He has also made more correct (and documented) technology predictions about the future than anyone:

As reported, “of the 147 predictions that Kurzweil has made since the 1990s, fully 115 of them have turned out to be correct, and another 12 have turned out to be “essentially correct” (off by a year or two), giving his predictions a stunning 86% accuracy rate.”

Two weeks ago, Ray and I held an hour-long webinar with my Abundance 360 CEOs about predicting the future. During our session, there was one of Ray’s specific predictions that really blew my mind.

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Oct 13, 2015

Will You Ever Be Able to Upload Your Brain?

Posted by in category: neuroscience

Your mind, in all its complexity, dies with you. And that’s it.

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Oct 10, 2015

Researchers Say They’ve Recreated Part of a Rat Brain Digitally

Posted by in categories: computing, neuroscience

http://www.nytimes.com/2015/10/09/science/rat-brain-digital-…oject.html


The research was partly supported by a more than $1 billion program that aims to eventually reconstruct the human brain in a computer.

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Oct 9, 2015

Brain simulation breakthrough reveals clues about sleep, memory

Posted by in categories: information science, neuroscience, supercomputing

The Blue Brain Project is a vast effort by 82 scientists worldwide to digitally recreate the human brain. While still far from that goal, the team revealed a breakthrough that has already provided insight into sleep, memory and neurological disorders. They created a simulation of a third of a cubic millimeter of a rat’s brain. While that might not sound like much, it involves 30,000 neurons and 37 million synapses. In addition, the simulated level of biological accuracy is far beyond anything so far. It allowed them to reproduce known brain activities — such as how neurons respond to touch — and has already yielded discoveries about the brain that were impossible to get biologically.

To create the simulation, researchers did thousands of experiments on rat brains over a 20 year period, logging each type of synapse and neuron discovered. That led to a set of fundamental rules describing how neurons connect to synapses and form microcircuits. Using the data, they developed an algorithm to pinpoint the synapse locations, simulating the circuitry of a rat’s brain. All of that data was then run through a supercomputer: “It was only with this kind of infrastructure that we could solve the billions of equations needed,” said software lead Felix Schurmann.

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