title: Synchronized chaotic intermittent and spiking behavior in coupled map chains.
abstract: We study phase synchronization effects in a chain of nonidentical chaotic oscillators with a type-I intermittent behavior. Two types of parameter distribution, linear and random, are considered. The typical phenomena are the onset and existence of global (all-to-all) and cluster (partial) synchronization with increase of coupling. Increase of coupling strength can also lead to desynchronization phenomena, i.e., global or cluster synchronization is changed into a regime where synchronization is intermittent with incoherent states. Then a regime of a fully incoherent nonsynchronous state (spatiotemporal intermittency) appears. Synchronization-desynchronization transitions with increase of coupling are also demonstrated for a system resembling an intermittent one: a chain of coupled maps replicating the spiking behavior of neurobiological networks.
authors.affiliation: Department of Radiophysics, Nizhny Novgorod University, 23, Gagarin Avenue, 603600 Nizhny Novgorod, Russia.
authors.forename: Grigory V
authors.initials: GV
authors.lastname: Osipov
authors.forename: Mikhail V
authors.initials: MV
authors.lastname: Ivanchenko
authors.forename: Jürgen
authors.initials: J
authors.lastname: Kurths
authors.forename: Bambi
authors.initials: B
authors.lastname: Hu