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Whisker Movements Reveal Spatial Attention: A Unified Computational Model of Active Sensing Control in the Rat

Figure 4

Plane model detail.

Head (light grey) location/orientation is defined by and . Nearby obstacle (dark grey). Whisker base is located on ‘mystacial pad arc’ (dashed curve) which traces the snout outline (open dot marks arc center). Whisker shaft angle at the base, denoted , is defined with respect to head midline (dotted lines). Unperturbed whisker arc (upper solid line) intersects obstacle. Perturbed whisker arc (lower solid line) is found by adjusting curvature caudally until no intersection occurs. Deviation of point marked with solid dot from unperturbed to perturbed arc is denoted .

doi: https://doi.org/10.1371/journal.pcbi.1003236.g004