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Cellular switches orchestrate rhythmic circuits
Drion, Guillaume; Franci, Alessio; Sepulchre, Rodolphe
2018
 

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Keywords :
Quantitative Biology - Neurons and Cognition; Mathematics -; Optimization and Control
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 circuits 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.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Drion, Guillaume
Franci, Alessio  ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Brain-Inspired Computing
Sepulchre, Rodolphe
Language :
English
Title :
Cellular switches orchestrate rhythmic circuits
Publication date :
01 February 2018
Available on ORBi :
since 03 July 2024

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