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Burst dynamics under mixed NMDA and AMPA drive in the models of the lamprey spinal CPG
KTH, Superseded Departments, Numerical Analysis and Computer Science, NADA. (Lansner)
KTH, Superseded Departments, Numerical Analysis and Computer Science, NADA.ORCID iD: 0000-0002-2358-7815
2003 (English)In: Neurocomputing, ISSN 0925-2312, E-ISSN 1872-8286, Vol. 52-54, 65-71 p.Article in journal (Refereed) Published
Abstract [en]

The spinal CPG of the lamprey is modeled using a chain of nonlinear oscillators. Each oscillator represents a small neuron population capable of bursting under mixed NMDA and AMPA drive. Parameters of the oscillator are derived from detailed conductance-based neuron models. Analysis and simulations of dynamics of a single oscillator, a chain of locally coupled excitatory oscillators and a chain of two pairs of excitatory and inhibitory oscillators in each segment are done. The roles of asymmetric couplings and additional rostral drive for generation of a traveling wave with one cycle per chain length in a realistic frequency range are studied.

Place, publisher, year, edition, pages
2003. Vol. 52-54, 65-71 p.
Keyword [en]
locomotiom, spinal cord, lamprey, modeling, intersegmental phase-lag, computer-simulations, neural networks, modulation, neurons
National Category
Bioinformatics (Computational Biology)
Identifiers
URN: urn:nbn:se:kth:diva-22589DOI: 10.1016/s0925-2312(02)00795-6ISI: 000183514300012OAI: oai:DiVA.org:kth-22589DiVA: diva2:341287
Note
QC 20100525 QC 20111221Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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