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E. Manjarrez, G. Rojas-Piloni, L. Martinez, D. Vazquez, D. Velez, I. Mendez, A. Flores

Amplitude of somatosensory cortical evoked potentials is correlated with spontaneous activity of spinal neurons in the cat. E. Manjarrez, G. Rojas-Piloni, L. Martinez, D. Vazquez, D. Velez, I. Mendez, A. Flores Neuroscience Letters 323(2002):187-190. Introduction.

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E. Manjarrez, G. Rojas-Piloni, L. Martinez, D. Vazquez, D. Velez, I. Mendez, A. Flores

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  1. Amplitude of somatosensory cortical evoked potentials is correlated with spontaneous activity of spinal neurons in the cat E. Manjarrez, G. Rojas-Piloni, L. Martinez, D. Vazquez, D. Velez, I. Mendez, A. Flores Neuroscience Letters 323(2002):187-190

  2. Introduction • Negative cord dorsum potential (CDP) • Monosynaptic reflexes and CDPs • Cortical neurons and dorsal horn spinal neurons

  3. Question • Correlation between spontaneous negative CDPs and somatosensory cortical evoked potential

  4. Method • Adult cats • Recording site: • Layer 3 to 6 of somatosensory cortex(S1) (glass micropipette) • L6 dorsal horn surface of lumbo-sacral spinal segment (silver ball electrode)

  5. Stimulating site: • Electrical: Sural(SU) and superficial peroneus(SP) • Mechanical: hindpaw

  6. Result • High positive correlation between amplitude fluctuations of spontaneous negative CDPs and fluctuations of the cortical evoked potential

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