Fig. S6.

Skin mechanics model. (A) Schematic of the hand used in the model. The reference coordinate system is centered on the center of the index fingertip. Different hand regions are defined that determine the innervation densities of the different afferent types. (B) Skin deflection profile resulting from the indentation of a circular pin (shown in gray; radius $=2$ mm). (C, Upper) Quasistatic and (C, Lower) dynamic components resulting from a 200-Hz vibration exerted with a single pin (radius $=$ 2 mm; blue trace) or a grid of evenly spaced pins (spacing $=$ 0.1 mm; radius $=$ 0.05 mm). Receptor depth was set to 0.5 mm.