Stationary Bumps in Networks of Spiking Neurons

摘要

We examine the existence and stability of spatially localized "bumps" of neuronal activity in a network of spiking neurons. Bumps have been proposed in mechanisms of visual orientation tuning, the rat head di- rection system, and working memory. We show that a bump solution can exist in a spiking network provided the neurons fire asynchronously within the bump.