Article (Scientific journals)
Cellular switches orchestrate rhythmic circuits
Drion, Guillaume; Franci, Alessio; Sepulchre, Rodolphe
2019In Biological Cybernetics, 113 (1-2), p. 71 - 82
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Keywords :
Central pattern generators; Mathematical modeling; Neuromodulation; Action Potentials; Animals; Brachyura; Computer Simulation; Models, Neurological; Nerve Net; Neurons; Nonlinear Dynamics; Periodicity; Computer science; Cybernetics; Mathematical models; Cellular mechanisms; Central pattern generator; Computational studies; Negative conductance; Neuronal circuits; Switching mechanism; Synaptic connectivity; action potential; animal; biological model; computer simulation; nerve cell; nerve cell network; nonlinear system; periodicity; physiology; Timing circuits
Abstract :
[en] Small inhibitory neuronal circuits have long been identified as key neuronal motifs to generate and modulate the coexisting rhythms of various motor functions. Our paper highlights the role of a cellular switching mechanism to orchestrate such circuits. The cellular switch makes the circuits reconfigurable, robust, adaptable, and externally controllable. Without this cellular mechanism, the circuit rhythms entirely rely on specific tunings of the synaptic connectivity, which makes them rigid, fragile, and difficult to control externally. We illustrate those properties on the much studied architecture of a small network controlling both the pyloric and gastric rhythms of crabs. The cellular switch is provided by a slow negative conductance often neglected in mathematical modeling of central pattern generators. We propose that this conductance is simple to model and key to computational studies of rhythmic circuit neuromodulation. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Drion, Guillaume ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Systèmes et modélisation
Franci, Alessio  ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Brain-Inspired Computing ; Department of Mathematics, Science Faculty, National Autonomous University of Mexico, Coyoacán, D.F., Mexico
Sepulchre, Rodolphe ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Systèmes et modélisation ; Department of Engineering, University of Cambridge, Cambridge, United Kingdom
Language :
English
Title :
Cellular switches orchestrate rhythmic circuits
Publication date :
2019
Journal title :
Biological Cybernetics
ISSN :
0340-1200
eISSN :
1432-0770
Publisher :
Springer Verlag
Volume :
113
Issue :
1-2
Pages :
71 - 82
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 04 July 2024

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