Modeling zero-lag synchronization of dorsal horn neurons during the traveling of electrical waves in the cat spinal cord

Kato, H.; Cuellar, C.; Delgado-Lezama, R.; Rudomin, P.; Jimenez-Estrada, I.; Manjarrez, E.; Mirasso, C. R.
Physiological Reports 1, e00021 (1-14) (2013)

The first electrophysiological evidence of the phenomenon of traveling electrical
waves produced by populations of interneurons within the spinal cord was
reported by our interdisciplinary research group. Two interesting observations
derive from this study: first, the negative spontaneous cord dorsum potentials
(CDPs) that are superimposed on the propagating sinusoidal electrical waves
are not correlated with any scratching phase; second, these CDPs do not
propagate along the lumbosacral spinal segments, but they appear almost
simultaneously at different spinal segments. The aim of this study was to provide
experimental data and a mathematical model to explain the simultaneous
occurrence of traveling waves and the zero-lag synchronization of some CDPs.


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