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Updated: Jun 11, 2025

Computational Modeling of Retinal Neurons for Visual Prosthesis Research - Fundamental Approaches
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Calibration of stochastic, agent-based neuron growth models with approximate Bayesian computation.

Tobias Duswald1,2, Lukas Breitwieser3, Thomas Thorne4

  • 1CERN, Geneva, Switzerland. tobias.duswald@tum.de.

Journal of Mathematical Biology
|October 8, 2024
PubMed
Summary

We developed a new Bayesian method, Approximate Bayesian Computation (ABC), to calibrate complex agent-based models (ABMs) simulating neuronal growth. This approach accurately models brain architecture and neuronal development.

Keywords:
Agent-based modelsApproximate Bayesian computationCalibrationNeuronal growth

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Area of Science:

  • Computational Neuroscience
  • Developmental Neuroscience
  • Bayesian Inference

Background:

  • Understanding neuronal growth is key to brain architecture.
  • Agent-based models (ABMs) simulate neuronal growth but face calibration challenges.
  • Accurate model calibration is crucial for reliable simulation results.

Purpose of the Study:

  • To present a novel application of Approximate Bayesian Computation (ABC) for calibrating agent-based models (ABMs) of neuronal growth.
  • To establish a robust Bayesian framework for neuronal growth model calibration.
  • To enable future investigations using Bayesian techniques for model building and verification.

Main Methods:

  • Utilized Approximate Bayesian Computation (ABC) within a Bayesian framework to solve the stochastic inverse problem of model calibration.
  • Quantified neuronal morphology using morphometrics for data-simulation comparison.
  • Employed Sequential Monte Carlo sampling and Wasserstein distance to measure discrepancies between simulated and experimental data.

Main Results:

  • Demonstrated that ABC with Sequential Monte Carlo and Wasserstein distance accurately finds posterior parameter distributions for ABMs.
  • Showcased that the calibrated ABMs capture key morphological features of hippocampal CA1 pyramidal cells.
  • Validated the approach using both synthetic and experimental neuronal growth data.

Conclusions:

  • Established a robust framework for calibrating agent-based neuronal growth models using Bayesian inference.
  • The proposed ABC method provides accurate parameter estimation for complex neuronal growth simulations.
  • This work facilitates advanced model building, verification, and adequacy assessment in neuroscience.