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Far-field somatosensory evoked potentials in response to selective stimulation of small diameter myelinated fibers in the cat

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Summary

Five far-field components were identified preceding the cortical wave in response to the stimulation of the Aβ fibers of the sural nerve. When Aδ activity was also included in the afferent volley, a second cortical wave and additional far-field potentials were recorded. Upon blocking the Aβ fiber activity and thus isolating the peripheral input to Aδ fibers alone, the initial cortical wave and the far-field potentials preceding it disappeared completely, leaving the Aδ evoked potentials intact.

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References

  1. Accornero N, Bini G, Lenzi GL, Manfredi M (1977) Selective activation of peripheral nerve fiber groups of different diameter by triangular shaped stimulus pulses. J Physiol (Lond) 273: 539–560

  2. Allison T, Hume AL (1981) A comparative analysis of short-latency somatosensory evoked potentials in man, monkey, cat and rat. Exp Neurol 72: 592–611

  3. Alpsan D (1981) The effect of the selective activation of different peripheral nerve fiber groups on the somatosensory evoked potentials in the cat. Electroenceph Clin Neurophysiol 51: 589–598

  4. Arezzo J, Legatt AD, Vaughan Jr HG (1979) Topography and intracranial sources of somatosensory evoked potentials in the monkey. I. Early components. Electroenceph Clin Neurophysiol 46: 155–172

  5. Chudler EH, Dong WK (1983) The assessment of pain by cerebral evoked potentials. Pain 16: 221–244

  6. Dong WK, Harkins SW, Ashleman BT (1982) Origins of cat somatosensory far-field and early near-field evoked potentials. Electroenceph Clin Neurophysiol 53: 143–165

  7. Iragui-Madoz VJ, Wiederholt WC (1977) Far-field somatosensory evoked potentials in the cat: correlation with depth recording. Ann Neurol 1: 569–574

  8. Wiederholt WC, Iragui Madoz VJ (1977) Far-field somatosensory potentials in the rat. Electroenceph Clin Neurophysiol 42: 456–465

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Alpsan, D. Far-field somatosensory evoked potentials in response to selective stimulation of small diameter myelinated fibers in the cat. Exp Brain Res 66, 664–666 (1987). https://doi.org/10.1007/BF00270699

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Key words

  • Somatosensory
  • Far-field
  • Evoked potential
  • Selective stimulation
  • A-delta fibers