Summary
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1.
The electromechanical transduction mechanisms operating in nerve membranes are considered theoretically.
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2.
For mechanical-to-electrical transduction (mechanical generator potentials), a model is proposed in which the surface charge on the membrane mediates stress-induced changes in the intramembrane electric field, thus opening transmembrane ion conductance channels or reducing the ion selectivity of the membrane via leak conductance pathways.
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3.
For electrical-to-mechanical transduction (axon diameter change with excitation), an investigation into two well-known electrostatic properties of dielectrics, electrostriction and piezoelectricity, in the context of the nerve membrane is undertaken which predicts a few percent change in axon dimensions for voltage- and space-clamped axons.
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Gross, D., Williams, W.S. & Connor, J.A. Theory of electromechanical effects in nerve. Cell Mol Neurobiol 3, 89–111 (1983). https://doi.org/10.1007/BF00735275
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DOI: https://doi.org/10.1007/BF00735275