
After
losing his lower right leg in a motorcycle accident four-and-a-half
years ago, 32-year-old Zac Vawter has been fitted with an artificial
limb that uses neurosignals from his upper leg muscles to control the
prosthetic knee and ankle. The motorized limb is the first
thought-controlled bionic leg, scientists at the Rehabilitation
Institute of Chicago reported Wednesday in The New England Journal of
Medicine.
When Vawter
thinks...