Figure 1.

Whisker movement patterns in neonatal rats. A, Snapshot of a P5 rat snout with the whisker tips marked with a black paint. Example trace (B) and cross-correlation coefficients (C) of movement of the four whiskers labeled on A. D, Time-colored traces of the whisker movements marked with asterisks on B. Gray circles represent the whisker bases. E, F, Histograms of whisker movement direction (E) and angular amplitude (F). Pooled data from 10 nonanesthetized P2–P7 rat pups (in total 675 movements).