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Neural interfaces are aimed at creating an intimate contact with neural cells, either to stimulate the nerves or to record neural signals. This would allow the development of neurocontrolled artificial devices. The quality of these systems can be improved by increasing the selectivity of the neural interfaces used to stimulate or to record the activity of specific subsets of cells. Hence selectivity...
A model of nerve stimulation is presented, incorporating a realistic cross-sectional geometry of a multifascicular nerve. The potential field within the nerve as caused by an stimulation electrode was calculated numerically. Nerve-fiber excitation was modeled according to D.R. McNeal (IEEE Trans Biomed. Eng., vol.23, p.329-37, 1976). Fascicle selective stimulation was studied for electrodes placed...
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