Article

Trans-radial amputee subjects were implanted with intrafascicular electrodes in
the stumps of the median and ulnar nerves. Electrical stimulation through these
electrodes was used to provide sensations of touch and finger position referred
to the amputated hand. Two subjects were asked to identify different objects as
to size and stiffness by manipulating them with a myo-electric hand without
visual or auditory cues. Both subjects were provided with information about
contact force with the objects via tactile sensations referred to their phantom
hands. One subject, who was provided with information about finger position in
the prosthetic hand via a different tactile sensation referred to his phantom
hand, was unable to correctly identify the objects. The other subject, who
received information about finger position via a proprioceptive sensation
referred to his phantom hand, correctly identified the objects at a level
statistically significantly above chance performance.

Langue : ANGLAIS

Tiré à part : OUI