Abstract
The optimal linear filters derived in the preceding paper can be thoroughly evaluated using computer simulations, based on the properties of mammalian sensory and motor nerve fibres. Using reasonable values for action potential waveforms, conduction velocity and electrode noise, good separation of motor and sensory signals can be obtained. The performance of the filters is degraded by 1) increasing the electrode noise, 2) introducing dispersion in the conduction velocities, or 3) variation in the waveform of the action potentials from that used in designing the filters. However, the variations needed to seriously degrade performance are quite large compared to those which are likely to be present in mammalian nerves. Use of these filters to distinguish different classes of sensory (or motor) signals based on conduction velocity is discussed.
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References
Basmajian, J.V.: Muscles alive: their functions revealed by electromyography. 2nd Edt., Baltimore: Williams & Wilkins 1967
Boyd, J.A., Davey, M.R.: The composition of peripheral nerves. Edinburgh-London: Livingstone 1968
Hursch, J.B.: Conduction velocity and diameter of nerve fibres. Amer. J. Physiol. 127, 131–139 (1939)
Loeb, G.E., Bak, M.J., Duysens, J.: Long-term unit recording from somato-sensory neurons in the spinal ganglia of the freely walking cat. Science 197, 1192–1194 (1977)
Oğuztöreli, M.N., Stein, R.B.: Optimal filtering of nerve signals. Biol. Cybernetics 27, 41–48 (1977)
Prochazka, A., Westerman, R.A., Ziccone, S.P.: Discharges of single hindlimb afferents in the freely moving cat. J. Neurophysiol. 39, 1090–1104 (1976)
Stein, R. B., Andreassen, S., Oğuztöreli, M.N.: Mathematical analysis of optimal multichannel filtering for nerve signals. Biol. Cybernetics 32, 19–24 (1979)
Stein, R.B., Nichols, T.R., Jhamandas, J., Davis, L., Charles, D.: Stable long-term recordings from cat peripheral nerves. Brain Res. 128, 21–38 (1977)
Stein, R.B., Pearson, K.G.: Predicted amplitude and form of extracellularly recorded action potentials from unmyelinated nerve fibres. J. Theor. Biol. 32, 539–558 (1971)
Stein, R.B., Oguztöreli, M.N.: The radial decline of nerve impulses in a restricted cylindrical extracellular space. Biol. Cybernetics 28, 159–165 (1978)
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This work was partially supported by the Technical Research Council of Denmark (Grant 516-6703.E406), the Medical Research Council of Canada (Grant MRC-MT3307) and the National Research Council of Canada (Grant NRC A-4345)
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Andreassen, S., Stein, R.B. & Oğuztöreli, M.N. Application of optimal multichannel filtering to simulated nerve signals. Biol. Cybernetics 32, 25–33 (1979). https://doi.org/10.1007/BF00337448
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DOI: https://doi.org/10.1007/BF00337448