Stimulus-evoked synchronization in neuronal models

It is known that stimulus-evoked synchronization among neurons occurs in widely separated cortical regions. In this paper we test that how common, random but not deterministic inputs can synchronize groups of neurons with their parameters inside physiologically plausible regions. When a common, random input is presented, we .nd that a group of neurons—of integrate-and-.re or Hodgkin–Huxley models—are capable of rapidly synchronizing their .ring. Interestingly the optimal average synchronization time occurs when the e2erent spikes have a high coe3cient of variation of interspike intervals (greater than 0.5). c © 2004 Elsevier B.V. All rights reserved.