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Note: BrainPy is a project under development. More features are coming soon. Contributions are welcome.
BrainPy
is a lightweight framework based on the latest Just-In-Time (JIT) compilers (especially Numba). The goal of BrainPy
is to provide a unified simulation and analysis framework for neuronal dynamics with the feature of high flexibility and efficiency. BrainPy is flexible because it endows the users with the fully data/logic flow control. BrainPy is efficient because it supports JIT acceleration on CPUs and GPUs.
Install BrainPy
using pip
:
> pip install brainpy-simulator
Install BrainPy
using conda
:
> conda install brainpy-simulator -c brainpy
Install BrainPy
from source:
> pip install git+https://github.com/PKU-NIP-Lab/BrainPy
> # or
> pip install git+https://git.openi.org.cn/OpenI/BrainPy
> # or
> pip install -e git://github.com/PKU-NIP-Lab/BrainPy.git@V0.2.5
BrainPy
is based on Python (>=3.7), and the following packages are
required to be installed to use BrainPy
:
HH Neuron ModelThe Hodgkin–Huxley model, or conductance-based model, is a mathematical model that describes how action potentials in neurons are initiated and propagated. It is a set of nonlinear differential equations that approximates the electrical characteristics of excitable cells such as neurons and cardiac myocytes. |
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AMPA Synapse ModelAMPA synapse model. |
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Gamma Oscillation ModelImplementation of the paper: Wang, Xiao-Jing, and György Buzsáki. “Gamma oscillation by synaptic inhibition in a hippocampal interneuronal network model.” Journal of neuroscience 16.20 (1996): 6402-6413. |
|
E/I Balance NetworkImplementation of the paper: Van Vreeswijk, Carl, and Haim Sompolinsky. “Chaos in neuronal networks with balanced excitatory and inhibitory activity.” Science 274.5293 (1996): 1724-1726. |
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Continuous-attractor NetworkImplementation of the paper: Si Wu, Kosuke Hamaguchi, and Shun-ichi Amari. "Dynamics and computation of continuous attractors." Neural computation 20.4 (2008): 994-1025. |
More neuron examples please see BrainPy-Models/neurons;
More synapse examples please see BrainPy-Models/synapses;
More network examples please see BrainPy-Models/from_papers.
Phase Plane AnalysisPhase plane analysis of the INa,p+-IK model, where "input" is 50., and "Vn_half" is -45.. |
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Codimension 1 Bifurcation Analysis (1)Codimension 1 bifurcation analysis of the INa,p+-IK model, in which "input" is varied in [0., 50.]. |
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Codimension 2 Bifurcation Analysis (1)Codimension 2 bifurcation analysis of a two-variable neuron model: the INa,p+-IK model, in which "input" is varied in [0., 50.], and "Vn_half" is varied in [-50, -40]. |
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Codimension 1 Bifurcation Analysis (2)Codimension 1 bifurcation analysis of FitzHugh Nagumo model, in which "a" is equal to 0.7, and "Iext" is varied in [0., 1.]. |
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Codimension 2 Bifurcation Analysis (2)Codimension 2 bifurcation analysis of FitzHugh Nagumo model, in which "a" is varied in [0.5, 1.0], and "Iext" is varied in [0., 1.]. |
More examples please see BrainPy-Models/dynamics_analysis.
Brain Dynamics Programming in Python
https://brainpy.readthedocs.io/
Python reStructuredText Markdown
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