clancylea / Spiking-Neural-Network

Basic SNN propogating spikes between LIF neurons

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Spiking Neural Network Simulator

Basic SNN propogating spikes between layers of LIF neurons

This code is designed to demo the use of a Spiking Neural Network (SNN) to propogate spikes between layers of neurons. At this stage there is no learning involved, it's purely about propogating spikes between LIF neurons.

Dependencies:

  • Python 3
  • Jupyter Notebooks
  • Numpy
  • Matplotlib
  • Random

Findings

  • The model works and it is possible to see spike trains propogate between different layers in an SNN
  • Only a simple model using feedforward has been applied here
  • Different spike trains are evidenced depending on the offset of the applied stimulus
  • There is no real view of biological plausability here, and this code base is unlikely to offer anything in terms of a real use-case
  • It has been a useful experience to understand the mechanics of a basic spiking network, and to witness it in action

Further Development

  • Explore other neuron types (Hodkins-Huxley neurons for example)
  • Explore how to develop a more complex layered model with feedforward, then with feedback too
  • Explore the impact of inhibitory neurons (excitory neurons are modelled above)
  • Explore how to integrate this with real stimuli (for example MNIST data)
  • Explore how to integrate learning into this multi-layered model

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Basic SNN propogating spikes between LIF neurons


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