Fig. 4. (A) Sample plot of rotation over time for a turn from one of the mice. Light shading represents forelimb support and dark shading hindlimb support. Thick line, postcranial body; normal line, head/neck angle; dotted line, angle of heading. The area between head and body angle traces (depicted by arrows) is the lead of the head/neck angle over the postcranial body angle. (B) Sample plot of the angular velocity of the postcranial body over time for one of the mice. Shading as in A. (C) Histogram showing the number of degrees rotated per bout for the two greatest bouts of postcranial body rotation during each turn. The angle turned per bout of rotation was determined by integrating between minima on the angular velocity over time curve in B.

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