Researchers at the California Institute of Technology (Caltech) were able to reproduce a variety of sensations in the hand of a paralyzed person. They managed to achieve this thanks to electrodes implanted in the brain, which stimulate neurons that are responsible for different sensations depending on the type of electrical signals.
Scientists argue that the research results will help create high-tech prostheses, with the help of which users can feel objects as before.
To do this, the researchers implanted two tiny arrays of electrodes in the somatosensory cortex of the brain, which is responsible for sensations of movement, body position and skin sensations, including touch, pressure and vibration.
In the next step, the researchers will associate the stimulation system with artificial limbs so that patients can feel certain types of touch with their help, as if it were a “living” hand.