Figure 6

Dynamics of firing responses of 4 representative neurons (A: non-synchronization type; B-D: synchronization type) in the single-click paradigm. A single click (arrow) was presented, and the spike occurrence was examined with raster dot plots (-1) and post-latency time histogram (bin width = 10 ms; -2). The threshold for excitation and suppression was set at plus/minus 2*SD of the mean of spontaneous firing rate (dotted line), respectively. The qualitatively distinct responses were aligned in the following sequence: only excitation (A), excitation (E) followed by suppression (S) (hereafter, "E-S sequence"; B), "E-S-E sequence" (C) and "E-S-E-S sequence" (D).