Fig. 4.

Example biorientation tuned cell. Polar (A) and 180° (B) plots for the same example neuron are shown. The firing rate in the polar plot is depicted as the distance away from the center, and the responses to each orientation are mirrored 180° to depict a circular tuning plot. In the Hand-Near condition, there is an increased response along the minor axis (orthogonal orientation) with no change in the major axis (preferred orientation), compared with the Hand-Away condition. B: also, with the hand present, responses to orientations between the two axes are suppressed below baseline.