Analysis of Cyclic Dynamics for Networks of Linear Threshold Neurons
Neural Computation
Dynamics of Winner-Take-All Competition in Recurrent Neural Networks With Lateral Inhibition
IEEE Transactions on Neural Networks
Boolean Factor Analysis by Attractor Neural Network
IEEE Transactions on Neural Networks
IEEE Transactions on Neural Networks
Local and Global Stability Analysis of an Unsupervised Competitive Neural Network
IEEE Transactions on Neural Networks
Nontrivial global attractors in 2-D multistable attractor neural networks
IEEE Transactions on Neural Networks
Continuous attractors of a class of neural networks with a large number of neurons
Computers & Mathematics with Applications
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This brief investigates continuous attractors of the well-developed model in visual cortex, i.e., the linear threshold (LT) neural networks, based on a parameterized 2-D model. On the basis of existing results on nondegenerate equilibria in mathematics, we further discuss degenerate equilibria for such networks and present properties and distributions of the equilibria, which enables us to draw the coexistence conditions of nondegenerate and degenerate equilibria (e.g., singular lines). Our theoretical results provide a useful framework for precise tuning on the network parameters, e.g., the feedbacks and visual inputs. Simulations are also presented to illustrate the theoretical findings.