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Spinal neurons bursting in phase with fictive scratching are not related to spontaneous cord dorsum potentials

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dc.contributor.author Cuellar C.
dc.contributor.author Trejo A.
dc.contributor.author Linares P.
dc.contributor.author Delgado-Lezama R.
dc.contributor.author Jiménez-Estrada I.
dc.contributor.author Abyazova L.
dc.contributor.author Baltin T.
dc.contributor.author Manjarrez E.
dc.date.accessioned 2018-09-18T20:08:40Z
dc.date.available 2018-09-18T20:08:40Z
dc.date.issued 2014
dc.identifier.issn 0306-4522
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/136944
dc.description.abstract Spontaneous cord dorsum potentials (spontaneous CDPs) are produced by the activation of dorsal horn neurons distributed along the L4 to S1 spinal cord segments, in Rexed's laminae III-VI, in the same region in which there are interneurons rhythmically bursting during fictive scratching in cats. An interesting observation is that spontaneous CDPs are not rhythmically superimposed on the sinusoidal CDPs generated during fictive scratching episodes, thus suggesting that the interneurons producing both types of CDPs belong to different spinal circuits. In order to provide experimental data to support this hypothesis, we recorded unitary activity of neurons in the L6 spinal cord segment. We found that the neurons firing rhythmically during the sinusoidal CDPs associated with the extensor, flexor or intermediate phases of scratching were not synchronized with the spontaneous CDPs. Moreover, we found that the neurons firing during the spontaneous CDPs were not synchronized with the sinusoidal CDPs. These results suggest that the neurons involved in the occurrence of spontaneous CDPs are not part of the spinal cord central pattern generators (CPGs). This study will be relevant for understanding the relationships between the spinal cord neuronal populations firing spontaneously and the CPGs, in the intact and injured spinal cord. © 2014 IBRO.
dc.relation.ispartofseries Neuroscience
dc.subject CDP
dc.subject Central pattern generator
dc.subject CPG
dc.subject Dorsal horn neurons
dc.subject Scratching
dc.subject Spontaneous
dc.title Spinal neurons bursting in phase with fictive scratching are not related to spontaneous cord dorsum potentials
dc.type Article
dc.relation.ispartofseries-volume 266
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 66
dc.source.id SCOPUS03064522-2014-266-SID84896832865


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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