First Cyborg Cerebellum
Researchers at Tel Aviv University have given a rat an artificial brain part—the cerebellum—thereby ushering in the era of true brain-to-computer communication for humans.
What's the Latest Development?
Researchers at Tel Aviv University have successfully engineered a robotic cerebellum that functions in the brain of rats. First the scientists sought to understand what kind of signal a rat cerebellum sends when it receives stimuli, then they duplicated that response in the mechanical cerebellum they engineered. "Attaching the synthetic cerebellum to the rat, the scientists tried to condition it to blink at the sound of a tone. To get the rat to blink they first fired a puff of air at the rat when the tone sounded and then just sounded the tone." When the motorized cerebellum was attached, the rat blinked.
What's the Big Idea?
The artificial cerebellum represents a higher order of brain-computer interface than what is currently experienced by users of advanced prosthetics that receive and execute orders from the brain. Since the cerebellum is but a part of the brain, the scientists had to engineer the "cerebellum to receive information from one part of the brain and send it back to another." Scientists need to understand more about how the cerebellum functions before a test is performed on humans but this recent experiment is good news for those with brain injuries.
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We take fewer mental pictures per second.
- Recent memories run in our brains like sped-up old movies.
- In childhood, we capture images in our memory much more quickly.
- The complexities of grownup neural pathways are no match for the direct routes of young brains.
In the face of seemingly unstoppable gun violence, Americans could stand to gain by looking to the Swiss.
- According to a recent study, the U.S. had the second highest number of gun-related deaths in 2016 after Brazil.
- Like the U.S., Switzerland has a high rate of gun ownership. However, it has a considerably lower rate of deaths from gun violence.
- Though pro-gun advocates point to Switzerland as an example of how gun ownership doesn't have to correlate with mass shootings, Switzerland has very different regulations, practices, and policies related to guns than America.
It's one of the most consistent patterns in the unviverse. What causes it?
- Spinning discs are everywhere – just look at our solar system, the rings of Saturn, and all the spiral galaxies in the universe.
- Spinning discs are the result of two things: The force of gravity and a phenomenon in physics called the conservation of angular momentum.
- Gravity brings matter together; the closer the matter gets, the more it accelerates – much like an ice skater who spins faster and faster the closer their arms get to their body. Then, this spinning cloud collapses due to up and down and diagonal collisions that cancel each other out until the only motion they have in common is the spin – and voila: A flat disc.
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