Title
Excitable networks for finite state computation with continuous time recurrent neural networks
Abstract
Continuous time recurrent neural networks (CTRNN) are systems of coupled ordinary differential equations that are simple enough to be insightful for describing learning and computation, from both biological and machine learning viewpoints. We describe a direct constructive method of realising finite state input-dependent computations on an arbitrary directed graph. The constructed system has an excitable network attractor whose dynamics we illustrate with a number of examples. The resulting CTRNN has intermittent dynamics: trajectories spend long periods of time close to steady-state, with rapid transitions between states. Depending on parameters, transitions between states can either be excitable (inputs or noise needs to exceed a threshold to induce the transition), or spontaneous (transitions occur without input or noise). In the excitable case, we show the threshold for excitability can be made arbitrarily sensitive.
Year
DOI
Venue
2021
10.1007/s00422-021-00895-5
BIOLOGICAL CYBERNETICS
Keywords
DocType
Volume
Continuous time recurrent neural network, Nonlinear dynamics, Excitable network attractor
Journal
115
Issue
ISSN
Citations 
5
0340-1200
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
P. Ashwin1178.26
Claire M. Postlethwaite263.53