A man who had his right arm amputated below the elbow has been able to feel hot and cold in his missing hand via a modified prosthetic arm with thermal sensors.
“In a previous study, we have shown the existence of these spots in the majority of amputee patients that we have treated,” saysThe latest science news delivered to your inbox, every day.First, Shokur and his colleagues mapped the spots on study participant Fabrizio Fidati’s upper arm that trigger sensations in different parts of his phantom hand. Then they adapted his existing prosthetic hand and socket with sensors and devices that can be made hot or cold, called thermodes.
The prosthetic also allowed Fidati to successfully distinguish, when blindfolded, glass, copper and plastic by touch with an accuracy just above two-thirds – the same as his uninjured left hand.
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