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BluePyEModel: Blue Brain Python Electrical Modeling Pipeline

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Introduction

The Blue Brain Python Electrical Modeling Pipeline (BluePyEModel) is a Python package facilitating the configuration and execution of electrical neuron model (e-model) building tasks. It covers tasks such as extraction of electrical features from electrophysiology data, e-model parameters optimisation and model validation. As such, it builds on top of eFEL, BluePyEfe and BluePyOpt.

For a general overview and example of electrical model building, please refer to the paper: A universal workflow for creation, validation and generalization of detailed neuronal models.

Note that this package only covers e-model building based on patch-clamp data and that it relies solely on the NEURON simulator.

How to cite

If you use this repository in your work, please use the Cite this repository button at the top of the repository page to get various citation formats, including APA and BibTeX.

For detailed citation information, please refer to the CITATION.cff file.

Additionally, to cite software used for different steps of the pipeline, please use these :

Installation

BluePyEModel can be pip installed with the following command:

pip install bluepyemodel[all]

If you do not wish to install all dependencies, specific dependencies can be selected by indicating which ones to install between brackets in place of 'all' (If you want multiple dependencies, they have to be separated by commas). The available dependencies are:

  • luigi
  • nexus
  • all

To get started with the E-Model building pipeline

E-Model building pipeline

This section presents a general picture of the pipeline. For a detailed picture and how to use it, please refer to the L5PC example and its README.

The pipeline is divided in 6 steps:

  • extraction: extracts e-features from ephys recordings and averages the results e-feature values along the requested targets.
  • optimisation: builds a NEURON cell model and optimises its parameters using as targets the efeatures computed during e-feature extraction.
  • storage of the model: reads the results of the extraction and stores the models (best set of parameters) in a local json file.
  • validation: reads the models and runs the optimisation protocols and/or validation protocols on them. The e-feature scores obtained on these protocols are then passed to a validation function that decides if the model is good enough.
  • plotting: reads the models and runs the optimisation protocols and/or validation protocols on them. Then, plots the resulting traces along the e-feature scores and parameter distributions.
  • exporting: read the parameter of the best models and export them in files that can be used either in NEURON or for circuit building.

These six steps are to be run in order as for example validation cannot be run if no models have been stored. Steps validation, plotting and exporting are optional. Step extraction can also be optional in the case where the file containing the protocols and optimisation targets is created by hand or if it is obtained from an older project.

For an example of how to run the pipeline with the Nexus access point, see the Nexus example

Schematics of BluePyEModel classes

Schematics of BluePyEModel classes

Acknowledgment

This work was supported by funding to the Blue Brain Project, a research center of the École polytechnique fédérale de Lausanne (EPFL), from the Swiss government’s ETH Board of the Swiss Federal Institutes of Technology. This work has been partially funded by the European Union Seventh Framework Program (FP7/2007­2013) under grant agreement no. 604102 (HBP), and by the European Union’s Horizon 2020 Framework Programme for Research and Innovation under the Specific Grant Agreements No. 720270 (Human Brain Project SGA1) and No. 785907 (Human Brain Project SGA2) and by the EBRAINS research infrastructure, funded from the European Union’s Horizon 2020 Framework Programme for Research and Innovation under the Specific Grant Agreement No. 945539 (Human Brain Project SGA3).

Copyright

Copyright (c) 2023-2024 Blue Brain Project/EPFL

This work is licensed under Apache 2.0