Coupling-induced population synchronization in an excitatory population of subthreshold Izhikevich neurons

Population activity structure of excitatory and inhibitory neurons

Many studies use population analysis approaches, such as dimensionality reduction, to characterize the activity of large groups of neurons. To date, these methods have treated each neuron equally, without taking into account whether neurons are excitatory or inhibitory. We studied population activity structure as a function of neuron type by applying factor analysis to spontaneous activity from...

Lumping Izhikevich neurons

We present the construction of a planar vector field that yields the firing rate of a bursting Izhikevich neuron can be read out, while leaving the sub-threshold behavior intact. This planar vector field is used to derive lumped formulations of two complex heterogeneous networks of bursting Izhikevich neurons. In both cases, the lumped model is compared with the spiking network. There is excell...

Synchronization in Pulse-Coupled Oscillators with Delayed Excitatory/Inhibitory Coupling

Due to their rich behaviors, pulse-coupled oscillator (PCO) networks have been widely studied. Prior research has focused on systems with excitatory, inhibitory, and mixed excitatory/inhibitory coupling, as well as on systems with and without delays in pulse transmission. This article focuses on PCO networks with delayed excitatory/inhibitory coupling. We consider a simple phase transition rule...

The Prevalence of HPV Genotypes in Iranian Population: An Update

Background & Objective: Human papillomavirus (HPV) is the main cause of genital warts and some anogenital cancers in male and female subjects which is commonly transmitted by sexual contacts. The objective of this cross-sectional study was to examine the prevalence of HPV genotypes in 10,266 Iranian male and female population, according to their age. Meth...

Title : Synchronization of Strongly Coupled Excitatory Neurons : Relating Network Behavior