Figure 7.

Firing rate changes with airflow direction. All eight neurons show variations in firing rate with airflow direction (two-way ANOVA: main effect of direction, p < 0.001 for all neurons). *p < 0.05 (Tukey's post hoc test). Each neuron is labeled with the row and column identity of the whisker it innervates. Light, medium, and dark green curves indicate slow, medium, and fast airspeed (∼1, 3, and 5 m/s) as indicated by the legend in the first subplot. Three airspeeds were used for neurons shown in the top row and two airspeeds used for neurons shown in the bottom row. Data show mean ± SEM over all trials at each condition. Firing rates are normalized to the maximum mean firing rate for a given airspeed. The absolute firing rates can be seen in Figure 6.