Equivalence of Additive and Multiplicative Coupling in Spiking Neural Networks

• URL: http://arxiv.org/abs/2304.00112v2
• Date: Tue, 11 Apr 2023 12:14:44 GMT
• Title: Equivalence of Additive and Multiplicative Coupling in Spiking Neural Networks
• Authors: Georg B\"orner, Fabio Schittler Neves, Marc Timme
• Abstract summary: Spiking neural network models characterize the emergent collective dynamics of circuits of biological neurons. We show that spiking neural network models with additive coupling are equivalent to models with multiplicative coupling.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Spiking neural network models characterize the emergent collective dynamics of circuits of biological neurons and help engineer neuro-inspired solutions across fields. Most dynamical systems' models of spiking neural networks typically exhibit one of two major types of interactions: First, the response of a neuron's state variable to incoming pulse signals (spikes) may be additive and independent of its current state. Second, the response may depend on the current neuron's state and multiply a function of the state variable. Here we reveal that spiking neural network models with additive coupling are equivalent to models with multiplicative coupling for simultaneously modified intrinsic neuron time evolution. As a consequence, the same collective dynamics can be attained by state-dependent multiplicative and constant (state-independent) additive coupling. Such a mapping enables the transfer of theoretical insights between spiking neural network models with different types of interaction mechanisms as well as simpler and more effective engineering applications.

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