TY - JOUR T1 - Ubiquity of collective irregular dynamics in balanced networks of spiking neurons JF - bioRxiv DO - 10.1101/389452 SP - 389452 AU - Ekkehard Ullner AU - Antonio Politi AU - Alessandro Torcini Y1 - 2018/01/01 UR - http://biorxiv.org/content/early/2018/08/10/389452.abstract N2 - We revisit the dynamics of a prototypical model of balanced activity in networks of spiking neurons. A detailed investigation of the thermodynamic limit for fixed density of connections (massive coupling) shows that, when inhibition prevails, the asymptotic regime is not asynchronous but rather characterized by a self-sustained irregular, macroscopic (collective) dynamics. So long as the connectivity is massive, this regime is found in many different setups: leaky as well as quadratic integrate-and-fire neurons; large and small coupling strength; weak and strong external currents. ER -