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Rats and mice scan their whiskers across regions near the face to localize objects in the azimuthal plane. The location of an object (black circle) within the region covered by a whisk cycle (pink-to-green gradient) can be determined by combining neural signals for whisker self-motion and whisker-object contact. These signals are encoded throughout the ascending somatosensory system (dashed lines). Modified from Mehta et al., 2007.
