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Surprisingly efficient snail brains could help make robots smarter
How snails think about eating could inform future robot decision-making designs. University of Sussex researchers have discovered that the creatures use just two brain cells for complex decisions: one cell told the snail if it was hungry, while another told it if food was near. Scientists attached electrodes to the snails' brains to measure activity -- which hopefully looked adorable. The takeaway is that it could help design efficient robot brains using the least possible number of components yet still capable of performing complex tasks. Lead researcher Professor George Kemenes added that it: "also shows how this system helps to manage how much energy they use once they have made a decision."
Scientists control a worm's brain cells using sound waves
Forget using clunky headsets and implants to control brain cells... one day, you might only need to use sound waves and some chemicals. Salk Institute scientists have found a way to control the brain cells of a tiny nematode worm through ultrasound. All they need to do to trigger activity is add a membrane ion channel to a neuron cell and blast it with ultrasonic waves -- in this experiment, the researchers changed the worm's direction through sound bursts. The approach is not only relatively unintrusive, but can reach deep into the body. You could trigger neural activity without ever hooking up an electrode, even for much larger animals.
University of Calgary succeeds in building a neurochip out of silicon, human brain cells
Scientists at the University of Calgary have teamed up with the National Research Council Canada to put a network of human brain cells on a microchip -- in effect creating a (tiny) brain on a chip. Until now, when scientists wanted to monitor brain cells, they could only monitor one or two simultaneously, but with this new neurochip, large groups of cells can be placed on the chip and observed in detail, as they go about their business "networking and performing automatic, large-scale drug screening for various brain dysfunctions," according to PhysOrg. But that's just the beginning! This sort of advance could someday lead to neurochip implants for driving artificial limbs, treatments for strokes and brain trauma, and more. The Globe and Mail even mentions the possibility that living neurons could be combined with silicon circuits to create an "organic computer." From that point it's only a matter of time before you're jacking into cyberspace with your Dixie Flatline ROM.
