Movie S1.

SA1, RA, and PC responses over time for a 300-Hz vibration at 50 μm using a pin tip of 1 mm in diameter centered on the distal pad of D2. The stimulus remains on for 1 s and ramps up and down within 50 ms. The video is slowed down 10-fold with respect to real time. Gray dots denote the locations of afferents; colored dots indicate that this afferent elicited a spike within the current time window of 33.3 ms.