Object Discrimination With an Artificial Hand Using Electrical Stimulation of Peripheral Tactile and Proprioceptive Pathways With Intrafascicular Electrodes
Object Discrimination With an Artificial Hand Using Electrical Stimulation of Peripheral Tactile and Proprioceptive Pathways With Intrafascicular Electrodes
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DOI：
10.1109/tnsre.2011.2162635
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发表时间：
2011-10-01
影响因子：
4.9
通讯作者：
Hutchinson, Douglas T.
中科院分区：
文献类型：
--
作者：
Horch, Kenneth;Meek, Sanford;Hutchinson, Douglas T.
经桡动脉截肢者受试者在正中神经和尺神经残端植入神经束内电极。通过这些电极的电刺激被用来提供触摸和手指位置的感觉，涉及截肢的手。两名受试者被要求识别不同的物体的大小和刚度操纵他们与肌电手没有视觉或听觉线索。两名受试者都提供了关于接触力的信息，通过触觉的对象提到他们的幻手。一名受试者，谁提供的信息，手指的位置在假手通过不同的触觉感觉提到他的幻手，是无法正确识别的对象。另一个主题，谁收到的信息，通过本体感觉手指的位置，指他的幻手，正确识别的对象在统计上显着高于机会的表现。
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.