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| Monkeys have been able to use virtual limbs to 'feel' virtual objects. Katie Zhuang |
An international team of researchers has developed a brain implant that enables monkeys to examine virtual objects by means of a virtual arm controlled by their brain. The device represents the next step towards the development of prosthetic limbs or robotic suits that would allow users to interact with their world without depending entirely on visual feedback.
The researchers, led by Miguel Nicolelis of Duke University in Durham, North Carolina, inserted electrodes into the motor cortex and somatosensory cortex of two monkeys. The motor cortex is the brain region involved in performing voluntary movement, whereas the somatosensory cortex processes input received from cells in the body that are sensitive to, among other sensory experiences, touch.
The monkeys were trained to use only their brain to explore virtual objects on a computer screen by moving a virtual image of an arm.
The researchers, led by Miguel Nicolelis of Duke University in Durham, North Carolina, inserted electrodes into the motor cortex and somatosensory cortex of two monkeys. The motor cortex is the brain region involved in performing voluntary movement, whereas the somatosensory cortex processes input received from cells in the body that are sensitive to, among other sensory experiences, touch.
The monkeys were trained to use only their brain to explore virtual objects on a computer screen by moving a virtual image of an arm.
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