Figure 5: Columns are organized by orientation not by direction.
From: Preference for concentric orientations in the mouse superior colliculus
(a) Example penetration with tuning for drifting gratings, static gratings and moving dots. For static gratings, the results for any direction and its opposite are the same, and presented only for comparison. (b) Orientation selectivity for static and drifting gratings is similar (P=0.24, t-test, drifting n=28 multi-units, static n=26, 5 mice) and is lower for moving dots (P=0.01 for static, P=0.046 for drifting, dots n=25). Error bars are mean±s.e.m. (c) Mean responses during stimulus presentation are highest for drifting gratings, and similar for static gratings and move dot displays (P<0.01 for moving dots compared to drifting and static gratings). (d) Histogram of circular variance of preferred orientation of each unit over different phases of static gratings (n=5 multi-units, 2 mice; left) and firing rate of an example unit over different angles of the static gratings with three different phases. (e) Orientation preference for drifting and static gratings is similar (n=26, 5 mice). Size of the dots indicates the number of the units with the same preferred orientation. (f) Orientation preference for drifting gratings and moving dots is different (n=25 multi-units, 5 mice). (g) Direction-selective units (DSI>0.5, left hemisphere) prefer upward motion (P<10−5, Rayleigh test for circular non-uniformity, n=72, 6 mice).
