ACDC Seminar by Áine Byrne on the 2nd of December

On the 2nd of December at 16.00, Áine Byrne will give an Amsterdam Dynamics Seminar. We will go for drinks at Bar Boele after the talk.

The talk will take place in the Maryam seminar room (9A-46).

Title: Pattern formation in an adaptive next-generation neural field model 

Abstract: Synaptic plasticity plays a fundamental role in neuronal dynamics, governing how connections between neurons evolve in response to experience. In this work, we extended a network model of θ-neuron oscillators to include a realistic form of adaptive plasticity, which adjusts coupling strengths based on the relative phases of θ-neuron oscillators [1]. We compare two distinct implementations of this plasticity: pairwise updates to individual coupling strengths and global updates applied to the mean coupling strength. We derive a mean-field approximation and assess its accuracy by comparing it toθ-neuron simulations across various stability regimes. Through bifurcation analysis and the calculation of maximal Lyapunov exponents, we uncover interesting phenomena such as bistability and chaotic dynamics via period-doubling and boundary crisis bifurcations [2]. We also study the spatially extended network and explore the existence and stability of spatiotemporal patterns. Through both a Turing instability analysis and numerical continuation, we uncover states above and beyond those seen in a standard neural field model.

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