Figure 3.

Vibrissae are underdamped. A, Motion trace of a C3 vibrissae from the right side of the face after a pulse deflection ex vivo. The vibrissa undergoes several oscillations before relaxing to the original position. Gray, Vibrissa. Black, Fit to model. Inset, Equation to fit (see Materials and Methods). B, A plot of the damping coefficients versus 1/FRF of vibrissae as measured in pulse mode, in vivo and ex vivo. Circles, Experimental results. Line, Least-squares fit. Slope of line (C) = 1.3; R² = 0.93.