Here we showed experimentally that high frequency oscillations (up to 600 Hz) were easily induced in a purely gap-junction coupled network by simple two stimuli with very short interval. The root cause is that the second elicited spike suffered from slow propagation speed and failure to transmit through a low-conductance junction. Similiar results were also obtained in these simulation.
Tseng SH, Tsai LY, Yeh SR (2008) Induction of high-frequency oscillations in a junction-coupled network. J Neurosci 28:7165-73 [PubMed]