On the cable theory of nerve conduction |
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Authors: | Tasaki Ichiji Matsumoto Gen |
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Institution: | (1) STBB, LIMB, NICHD, LCMR, NIMH, National Institutes of Health, Bldg 13, Rm 3E-25, Bethesda, MD 20892, USA;(2) Brainway Group, Brain Science Institute, Riken, Wako, Saitama 351-0198, Japan |
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Abstract: | Conduction of an impulse in the nonmyelinated nerve fiber is treated quantitatively by considering it as a direct consequence
of the coexistence of two structurally distinct regions, resting and active, in the fiber. The profile of the electrical potential
change induced in the vicinity of the boundary between the two regions is analyzed by using the cable equations. Simple mathematical
formulae relating the conduction velocity to the electrical parameters of the fiber are derived from the symmetry of the potential
profile at the boundary. The factors that determine the conduction velocity in the myelinated nerve fiber are reexamined. |
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Keywords: | |
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