Topic: non-ergodic network dynamics

Cortical neurons in vivo exhibit significant temporal variability, the source of which is crucial for understanding its computational and behavioural implications [1,2]. However, to match experimental observations, single-cell activity must fluctuate over much longer time scales than typical neural and synaptic time scales [3,4]. Balanced networks generally do not produce such slow fluctuations in firing rates, raising questions about their origin. Some theories attribute them to precise synaptic connectivity [5] according to an alternative scenario slow fluctuations in the rates result from n