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From decision to action : detailed modelling of frog tadpoles reveals neuronal mechanisms of decision-making and reproduces unpredictable swimming movements in response to sensory signals

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Date
13/12/2021
Author
Ferrario, Andrea
Palyanov, Andrey
Koutsikou, Stella
Li, Wenchang
Soffe, Steve
Roberts, Alan
Borisyuk, Roman
Keywords
QH301 Biology
QA76 Computer software
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
DAS
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Abstract
How does the brain process sensory stimuli, and decide whether to initiate locomotor behaviour? To investigate this question we develop two whole body computer models of a tadpole. The “Central Nervous System” (CNS) model uses evidence from whole-cell recording to define 2300 neurons in 12 classes to study how sensory signals from the skin initiate and stop swimming. In response to skin stimulation, it generates realistic sensory pathway spiking and shows how hindbrain sensory memory populations on each side can compete to initiate reticulospinal neuron firing and start swimming. The 3-D “Virtual Tadpole” (VT) biomechanical model with realistic muscle innervation, body flexion, body-water interaction, and movement is then used to evaluate if motor nerve outputs from the CNS model can produce swimming-like movements in a volume of “water”. We find that the whole tadpole VT model generates reliable and realistic swimming. Combining these two models opens new perspectives for experiments.
Citation
Ferrario , A , Palyanov , A , Koutsikou , S , Li , W , Soffe , S , Roberts , A & Borisyuk , R 2021 , ' From decision to action : detailed modelling of frog tadpoles reveals neuronal mechanisms of decision-making and reproduces unpredictable swimming movements in response to sensory signals ' , PLoS Computational Biology , vol. 17 , no. 12 , e1009654 . https://doi.org/10.1371/journal.pcbi.1009654
Publication
PLoS Computational Biology
Status
Peer reviewed
DOI
https://doi.org/10.1371/journal.pcbi.1009654
ISSN
1553-734X
Type
Journal article
Rights
Copyright: © 2021 Ferrario et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Description
Funding: A.F. acknowledges support from the UK Engineering and Physical Sciences Research Council (EPSRC) New Investigator Award (EP/R03124X/1). The work of A.P. was performed according to the Russian Federation Government research assignment for A.P. Ershov Institute of Informatics Systems SB RAS, project FWNU-2021-0005. S.K. acknowledges support from The Physiological Society UK Research Grant award. R.B. acknowledges support from the UK Biotechnology and Biological Sciences Research Council (BBSRC): BB/L000814/1, BB/T002352/1. W.L. acknowledges support from the UK Biotechnology and Biological Sciences Research Council (BBSRC): BB/T003146.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/24634

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