rkrai1 / spiking-neural-network

Basic SNN propogating spikes between LIF neurons

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