By Matt McGrath Science
reporter, BBC World Service
Monkeys have been trained to control a virtual arm on a computer screen using only their brain waves.
Scientists say the animals were also able use the arm to sense the texture of different virtual objects.
Writing in the journal Nature, the researchers say their work could speed up the development of wearable exoskeletons.
This technology could help quadriplegic patients not only regain movement but a sense of touch as well.
control by the monkeys and sensory feedback to them