Fig. 9.

Tuning curves and neurometric functions for an example pair of SU and MU recordings during the heading discrimination task. A: heading tuning curves for an example SU (red, vestibular; blue, visual; green, combined). Zero heading corresponds to straight ahead, and positive/negative values correspond to rightward/leftward headings. B: responses of the simultaneously recorded MU activity during the discrimination task. C and D: neurometric functions computed from the SU (C) and MU (D) responses using ROC analysis. Smooth curves show best-fitting cumulative Gaussian functions.