Input induced synchrony, and desynchrony due to internal dynamics

This is perhaps the most uninteresting network of neurons: uncoupled (independent) oscillating neurons. The only interesting thing is that they share a common input. The oscillation can be reset by the input, thus, inducing synchrony of the population.
The plot on the right is how they desynchronize over time. It is due to the variability of each neuron's period. The more variability, the faster the desynchronization.