Photostimulation of discrete granule cell patches elicits a variety of Purkinje cell responses.
A, Pseudocolor ΔFR map of the change in post-photolysis instantaneous firing rate (ΔFR) of the recorded Purkinje cell (burgundy) schematized on the left, with inhibition intact. Different response types are labeled a-e and described in Results. The corresponding map of instantaneous firing rate vs. time responses of the same Purkinje cell is shown on the right.
B, Same cell as in A, but with inhibition blocked.
The baseline firing rate of this cell was 48 spikes/s with both inhibition intact and blocked.