What orders will you give to your rat army? Via New Scientist:
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Telepathic control of another person’s body is a small step closer – human volunteers were able to trigger movement in a rat’s tail using their minds.
Recently, researchers linked the brains of two rats so that they worked together. Such techniques are unlikely to be applied to humans any time soon because they require invasive surgery to implant electrodes into the brain. But now Seung-Schik Yoo of Harvard Medical School and colleagues have created a system that connects a human to a rat via a computer, without the need for the human or the rat to have brain implants.
The human volunteers wore electrode caps that monitored their brain activity using electroencephalography (EEG). Meanwhile, an anaesthetised rat was hooked up to a device that made the creature’s neurons fire whenever it delivered an ultrasonic pulse to the rat’s motor cortex.