Figure 8.

Representative examples of the ability of PR5 cells to follow high-frequency whisker stimulation. Cells were driven by bursts of 10 cycle sinusoidal displacements in different directions (0°, caudalward; 90°, upward, etc.) as shown in the inset in C. All of the units responded with at least one spike to the first cycle of each stimulus sequence. The percentage of modulation was computed by averaging the number of times the unit responded with at least one spike to each of the subsequent 9 cycles across a series of 10 stimulus sequences. The inserted PSTH in A shows responses evoked by electrical stimulation of the follicle (asterisks, 4 shocks at 400 Hz). See Results for full description.