A central issue in cerebellar physiology is how PCs transform signals coming from granule cells into specific outputs. The spike patterns emitted by granule cells in response to punctuate stimulation consist of short bursts composed of spikes with variable number and ISI (Chadderton et al., 2004; Rancz et al., 2007; D’Angelo and De Zeeuw, 2009). We have therefore used the PC model to simulate the impact on BPR of stereotyped patterns composed by a fixed number of pulses at different frequencies. Concerning burst length, the PC model showed an almost linear input/output relationship at frequencies ranging from 100 Hz to 500 Hz (Figure 4A, left). The pause also showed a slight dependency on the length of the input burst and this eventually caused the burst/pause ratio to reliably report the duration of the input burst (Figure 4A, right). There are two additional noteworthy properties. First, the linearity of burst and burst/pause coding was maintained almost independently from the input frequency. Secondly, the Ranvier nodes in the PC axon filtered the highest frequencies (Masoli et al., 2015) so that the burst was more reliably transmitted at the lower input frequencies (Figure 4A, bottom).