Arbor-TVB: A Novel Multi-Scale Co-Simulation Framework with a Case Study on Neural-Level Seizure Generation and
Thorsten Hater1, Juliette Courson2,3, Han Lu1
1Simulation and Data Lab Neuroscience, Jülich Supercomputing Centre (JSC), Institute for Advanced Simulation, Forschungszentrum Jülich GmbH, Jülich, Germany.
Arxiv
|June 5, 2025
Summary
This study introduces a new computational framework linking detailed neuron models (Arbor) with whole-brain simulations (The Virtual Brain). This multi-scale approach enables better understanding of brain disorders like seizures and potential treatment strategies.
Area of Science:
- Computational Neuroscience
- Systems Neuroscience
- Computational Biology
Background:
- Traditional computational neuroscience models operate at isolated scales (microscopic or macroscopic).
- Integrating these different scales of brain activity poses a significant challenge to understanding complex neural dynamics.
- Bridging the gap between detailed biophysical neuron models and large-scale brain network models is crucial for comprehensive analysis.
Purpose of the Study:
- To present a novel co-simulation framework integrating the Arbor neural simulator with The Virtual Brain (TVB) platform.
- To enable multi-scale modeling of brain function, bridging microscopic neuron-level detail with macroscopic network dynamics.
- To investigate the onset and propagation of seizures within a comprehensive computational model.
Main Methods:
- Developed a co-simulation framework linking Arbor and TVB using an MPI intercommunicator for real-time bidirectional data exchange.
- Translated discrete neuronal spikes from Arbor into continuous activity for TVB, and vice versa.
- Enabled the replacement of TVB nodes with biologically realistic neuron populations simulated by Arbor.
Main Results:
- Successfully integrated Arbor and TVB, creating a novel Arbor-TVB co-simulator for multi-scale brain modeling.
- Demonstrated the framework's capability to model seizure onset in specific brain areas and their propagation across the whole brain.
- Provided a method for investigating neural disorders and potential intervention strategies through detailed simulation.
Conclusions:
- The Arbor-TVB co-simulator represents a significant advancement in multi-scale computational neuroscience.
- This integrated framework offers unprecedented insights into the mechanisms of neural disorders like epilepsy.
- Facilitates the development and testing of optimized treatment strategies for brain disorders.
Related Concept Videos
01:13Seizures: Classification
620
Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
620
01:23Propagation of Action Potentials
7.1K
The propagation of an action potential refers to the process by which a nerve impulse, or "action potential," travels along a neuron.
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
7.1K
01:25Neural Circuits
1.6K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.6K