Monkey's brain used to move another monkey
Scientists at Harvard Medical School say they have been able to read brain scans of a monkey’s mind and use them to electrically stimulate another monkey’s spinal cord and control its movements.
Instead of paralyzing a monkey for the study, the research team used two monkeys, calling one the “master,” and the other, the “avatar.” They implanted a brain chip in the master, which was able to monitor the activity of up to 100 of its neurons. The physical actions of the monkey were then matched up with the patterns of electrical activity in the neurons. The avatar monkey, meanwhile, had 36 electrodes implanted in its spinal cord.
The two monkeys were then hooked up so that the brain scans of one monkey controlled the movements in real time in the other. The sedated avatar held a joystick while the master had to think about moving a cursor up or down. In 98 percent of tests, the master could correctly control the avatar’s arm, according to the researchers.
The scientists said they hope that one day their reserarch could help paralyzed people regain control of their bodies.