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Origin and circuitry of spinal locomotor interneurons generating different speeds.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Developmental Neuroscience. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Developmental Genetics.ORCID iD: 0000-0002-4877-9725
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.ORCID iD: 0000-0001-6418-5460
2018 (English)In: Current Opinion in Neurobiology, ISSN 0959-4388, E-ISSN 1873-6882, Vol. 53, p. 16-21Article in journal (Refereed) Published
Abstract [en]

The spinal circuitry governing the undulatory movements of swimming vertebrates consist of excitatory and commissural inhibitory interneurons and motor neurons. This locomotor network generates the rhythmic output, coordinate left/right alternation, and permit communication across segments. Through evolution, more complex movement patterns have emerged, made possible by sub-specialization of neural populations within the spinal cord. Walking tetrapods use a similar basic circuitry, but have added layers of complexity for the coordination of intralimbic flexor and extensor muscles as well as interlimbic coordination between the body halves and fore/hindlimbs. Although the basics of these circuits are known there is a gap in our knowledge regarding how different speeds and gaits are coordinated. Analysing subpopulations among described neuronal populations may bring insight into how changes in locomotor output are orchestrated by a hard-wired network.

Place, publisher, year, edition, pages
2018. Vol. 53, p. 16-21
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:uu:diva-367220DOI: 10.1016/j.conb.2018.04.024ISI: 000451938500004PubMedID: 29733915OAI: oai:DiVA.org:uu-367220DiVA, id: diva2:1266749
Funder
Swedish Research CouncilThe Swedish Brain FoundationThe Swedish Foundation for International Cooperation in Research and Higher Education (STINT)Available from: 2018-11-29 Created: 2018-11-29 Last updated: 2019-01-28Bibliographically approved

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Boije, HenrikKullander, Klas

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