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

Physiological Reports

Hideyuki Kato²  Carlos A. Cuellar¹  Rodolfo Delgado-Lezama¹  Pablo Rudomin¹  Ismael Jimenez-Estrada¹  Elias Manjarrez³ 

[1] Departamento de Fisiología, Biofísica y Neurociencias CINVESTAV, Col. San Pedro Zacatenco, México;Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC, UIB-CSIC), Campus Universitat de les Illes Balears, Palma de Mallorca, Spain;Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, Col. San Manuel, Puebla, Pue, México

关键词: Dorsal horn neurons;    scratching;    traveling waves;    central pattern generator;   

DOI  :  10.1002/phy2.21

来源: Wiley

【 摘 要 】

Abstract

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.

【 授权许可】

CC BY   
© 2013 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and The Physiological Society.

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