Figure 4.

Complex (CxS) and simple (SS) spikes during stimulus omissions. A: mean CxS rate for all 13 complex spike elevated (CxSE) cells (left) and all 9 complex spike reduced (CxSR) cells (right), for 6 puffs before and 1 puff after each omission, averaged over 39 omissions. Omission occurs at time = 0 ms. B: CxSE (left) and CxSR (right) CxS rate after omission (mean trace, red or blue; SE, shading), mean rate after the stimulus, averaged for the 3 puffs before the omission (black). C, left: as in B, but with omission response of CxSE cells (red), the puff response for CxSR cells (black), and the time-shifted puff response of CxSR cells that gave the highest cross-correlation (purple). Right: solid symbols, correlation of omission response and the time-shifted puff response from the plot at left. Black line, linear fit, with correlation coefficient and lag as indicated. D: as in A for SSs. Note that with the 20-ms sliding bins used to compute rate, the puff-evoked well-timed 2-ms suppressions of SSs are filtered out, and only the later slow rate increases are visible. E: maximal and minimal CxS (left) and SS (right) firing rates in response to repetitive stimuli over the time course of each train, averaged over all 40 trains for all CxSE cells (red) or all CxSR cells (blue). Puff 1 indicates the first stimulus in each train. rel., Relative to.