Phase locking states between Fast Spiking interneurons coupled by electrical and chemical synapses.

The phase locking states in a pair of Fast Spiking interneurons coupled by electrical and inhibitory synapses are investigated by using the theory of weakly coupled oscillators. It is shown that increasing either the decay time constant of the inhibitory current or the firing frequency of the cells favours the emergence of synchronous discharges. We also found that adding the electrical coupling promotes synchronous regimes.