Figure 3. Whisker movements evoked by MCtx stimulation at various frequencies.

A, left column: trajectories of a whisker during 5-s long stimulus trains at frequencies ranging from 7 to 25.9 Hz. Numbers above each trace indicate stimulus frequency. In this, and all subsequent, figures dots above a trajectory indicate times of stimuli during a train. Amplitude calibration bar under the 7.0 Hz trace is for all trajectories in the column. Trajectories reflect raw data without baseline subtraction. Middle and right columns: periodograms and Wigner plots of the trajectories, respectively. B, portion of each trajectory in A (indicated by bracket) at an expanded scale to show the response patterns more clearly.