Tactile sensations make amputees feel like prosthetic limbs are their own


Profitable Giants Like Amazon Pay $0 in Corporate Taxes. Some Voters Are Sick of It

Technology news
240 points

Ozone hole in northern hemisphere to recover completely by 2030

Technology news
240 points

Most recent

La edad de la razón

El diario de Enrique
8 points

5 consejos para averiguar los gustos de alguien antes de hacerle un regalo

12 points

Si le han recetado aspirina para prevenir estas dolencias ¡cuidado!

228 points

Un estudio apunta q la vitamina D podría reducir la inflamación y beneficiosa contra COVID-19 grave

188 points


pensamiento Libre
60 points


pensamiento Libre
38 points

5 sectores que se están recuperando rápidamente tras la pandemia

Mis Noticia
100 points

Aviso: Una brecha de seguridad roba los datos de 1,2 millones de usuarios de WordPress

140 points

Maradona: las 6 enfermedades que más problemas le dieron al pibe de oro

92 points

La OMS nombra Omicron a nueva variante de coronavirus y advierte posible mayor riesgo de reinfección

164 points
Researchers have determined a method to help amputees be convinced that a prosthetic hand belongs to their own body.

Tactile sensations make amputees feel like prosthetic limbs are their own

In a scientific collaboration led by the Federal Institute of Technology in Lausanne, Switzerland, they utilized a combination of two senses -- sight and touch -- instead of just "seeing is believing." The results were published Tuesday in the Journal of Neurology, Neurosurgery & Psychiatry.

Prosthetic limbs often don't feel part of patient's bodies, the scientists said. They often still feel their missing limb, which is perceived as bigger than their prosthetic. In addition, they often do not yet have sensory feedback, meaning they must constantly watch it for correct use.

"The brain regularly uses its senses to evaluate what belongs to the body and what is external to the body," Giulio Rognini of the institute's Laboratory of Cognitive Neuroprosthetics said in a press release. "We showed exactly how vision and touch can be combined to trick the amputee's brain into feeling what it sees, inducing embodiment of the prosthetic hand with an additional effect that the phantom limb grows into the prosthetic one."

In 2014, researchers at the institute gave an amputee the ability to feel in real-time with their prosthetic hand. Touch coming from sensors at the fingertips were processed and relayed into the nervous system via electrodes surgically wired to the stump's main nerves.

In the new study, scientists provided two hand amputees artificial tactile sensations at the tip of the index finger -- of the phantom limb -- by stimulating the patient's nerve in the stump. In addition, the patient wore virtual reality goggles, which showed the index finger glowing with the administered touch sensations.

In both cases, patients reported feeling as though the prosthetic hand belonged to their body.

They even reported feeling as though their phantom limb had extended into the prosthetic limb.

The phantom limb remained extended for up to 10 minutes afterward.

For the method to work, the visual glow and the artificial touch must occur simultaneously, researchers said.

"The setup is portable and could one day be turned into a therapy to help patients embody their prosthetic limb permanently," Rognini said.

ByAllen Cone

Fuente: www.upi.com
To comment you must log in with your account or sign up!
Featured content