According to a new study by Xinhua News Agency (Reporter Liu Qu), virtual reality is expected to help amputated patients "feel" the touch from the prosthetic and induce their brains to believe that the prosthesis belongs to their own body.
Many amputated patients choose to discontinue after using the prosthesis for a period of time because they feel uncomfortable. On the one hand, the patient feels that the lost limb still exists, that is, there is a so-called phantom limb; on the other hand, the prosthesis sold on the market usually does not provide tactile feedback, and the patient needs to combine observation to use it correctly.
To this end, researchers from the Federal Institute of Technology in Lausanne, Switzerland, introduced virtual reality technology, subtly combining visual and tactile sensations to enhance the experience of using prostheses in amputated patients, and conducted experiments using two volunteers who lost their hands. The paper has been published in the journal Journal of Neurology, Neurosurgery and Psychiatry.
Specifically, the researchers created a tactile sensation on the fingertips of the phantom limbs by stimulating the residual nerves of the two patients. Two patients wearing virtual reality glasses, while feeling the touch at the fingertips of the phantom limbs, will "see" the prosthetic index finger glow, so that the brain "believes" the prosthesis as a natural extension of the body.
Researchers say the device used in the trial is portable and may one day become a treatment to help patients permanently implant a prosthesis.
People's Daily (22 August 20, 2018)
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