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A Functional Spiking Neural Network of Ultra Compact Neurons

Abstract : We demonstrate that recently introduced ultra-compact neurons (UCN) with a minimal number of components can be interconnected to implement a functional spiking neural network. For concreteness we focus on the Jeffress model, which is a classic neuro-computational model proposed in the 40’s to explain the sound directionality detection by animals and humans. In addition, we introduce a long-axon neuron , whose architecture is inspired by the Hodgkin-Huxley axon delay-line and where the UCNs implement the nodes of Ranvier. We then interconnect two of those neurons to an output layer of UCNs, which detect coincidences between spikes propagating down the long-axons. This functional spiking neural neuron circuit with biological relevance is built from identical UCN blocks, which are simple enough to be made with off-the-shelf electronic components. Our work realizes a new, accessible and affordable physical model platform , where neuroscientists can construct arbitrary mid-size spiking neuronal networks in a lego -block like fashion that work in continuous time. This should enable them to address in a novel experimental manner fundamental questions about the nature of the neural code and to test predictions from mathematical models and algorithms of basic neurobiology research. The present work aims at opening a new experimental field of basic research in Spiking Neural Networks to a potentially large community, which is at the crossroads of neurobiology, dynamical systems, theoretical neuroscience, condensed matter physics, neuromorphic engineering, artificial intelligence, and complex systems.
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https://hal-enpc.archives-ouvertes.fr/hal-03323460
Contributeur : Marcelo Rozenberg <>
Soumis le : samedi 21 août 2021 - 14:55:47
Dernière modification le : lundi 23 août 2021 - 03:20:59

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Pablo Stoliar, Olivier Schneegans, Marcelo Rozenberg. A Functional Spiking Neural Network of Ultra Compact Neurons. Frontiers in Neuroscience, Frontiers, 2021, 15, ⟨10.3389/fnins.2021.635098⟩. ⟨hal-03323460⟩

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