Visualization of currents in neural models with similar behavior and different conductance densities

Conductance-based models of neural activity produce large amounts of data that can be hard to visualize and interpret. We introduce visualization methods to display the dynamics of the ionic currents and to display the models’ response to perturbations. To visualize the currents’ dynamics, we comput...

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Main Authors: Leandro M Alonso, Eve Marder
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2019-01-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/42722
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author Leandro M Alonso
Eve Marder
author_facet Leandro M Alonso
Eve Marder
author_sort Leandro M Alonso
collection DOAJ
description Conductance-based models of neural activity produce large amounts of data that can be hard to visualize and interpret. We introduce visualization methods to display the dynamics of the ionic currents and to display the models’ response to perturbations. To visualize the currents’ dynamics, we compute the percent contribution of each current and display them over time using stacked-area plots. The waveform of the membrane potential and the contribution of each current change as the models are perturbed. To represent these changes over a range of the perturbation control parameter, we compute and display the distributions of these waveforms. We illustrate these procedures in six examples of bursting model neurons with similar activity but that differ as much as threefold in their conductance densities. These visualization methods provide heuristic insight into why individual neurons or networks with similar behavior can respond widely differently to perturbations.
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spelling doaj.art-d83ad9d7680e476e808049753e5c326b2022-12-22T03:52:51ZengeLife Sciences Publications LtdeLife2050-084X2019-01-01810.7554/eLife.42722Visualization of currents in neural models with similar behavior and different conductance densitiesLeandro M Alonso0https://orcid.org/0000-0001-8211-2855Eve Marder1https://orcid.org/0000-0001-9632-5448Volen Center and Biology Department, Brandeis University, Waltham, United StatesVolen Center and Biology Department, Brandeis University, Waltham, United StatesConductance-based models of neural activity produce large amounts of data that can be hard to visualize and interpret. We introduce visualization methods to display the dynamics of the ionic currents and to display the models’ response to perturbations. To visualize the currents’ dynamics, we compute the percent contribution of each current and display them over time using stacked-area plots. The waveform of the membrane potential and the contribution of each current change as the models are perturbed. To represent these changes over a range of the perturbation control parameter, we compute and display the distributions of these waveforms. We illustrate these procedures in six examples of bursting model neurons with similar activity but that differ as much as threefold in their conductance densities. These visualization methods provide heuristic insight into why individual neurons or networks with similar behavior can respond widely differently to perturbations.https://elifesciences.org/articles/42722neuronal oscillatorsNa+ channelsCa++ channelsK+ channelsconductance-basedionic channels
spellingShingle Leandro M Alonso
Eve Marder
Visualization of currents in neural models with similar behavior and different conductance densities
eLife
neuronal oscillators
Na+ channels
Ca++ channels
K+ channels
conductance-based
ionic channels
title Visualization of currents in neural models with similar behavior and different conductance densities
title_full Visualization of currents in neural models with similar behavior and different conductance densities
title_fullStr Visualization of currents in neural models with similar behavior and different conductance densities
title_full_unstemmed Visualization of currents in neural models with similar behavior and different conductance densities
title_short Visualization of currents in neural models with similar behavior and different conductance densities
title_sort visualization of currents in neural models with similar behavior and different conductance densities
topic neuronal oscillators
Na+ channels
Ca++ channels
K+ channels
conductance-based
ionic channels
url https://elifesciences.org/articles/42722
work_keys_str_mv AT leandromalonso visualizationofcurrentsinneuralmodelswithsimilarbehavioranddifferentconductancedensities
AT evemarder visualizationofcurrentsinneuralmodelswithsimilarbehavioranddifferentconductancedensities