Fig. 6.

Orientation tuning in CN neurons. (A) Response of four example CN neurons to oriented edges. The angular coordinate denotes orientation, the radial coordinate denotes firing rate, and the dashed circle denotes the firing rate averaged across conditions. (B) Cumulative distribution of the OSI derived from the responses of nerve fibers, CN neurons, and S1 neurons. CN responses are more strongly tuned for orientation than are nerve fibers but more weakly tuned than some S1 neurons.