Figure 5.

Three-wall sessions. A, Head direction tuning curves for a representative HD cell recorded during a three-wall session in light conditions where the animal moved onto the right face of the cube apparatus before the left face. Head direction is measured relative to the cell's PFD in the start box. B, Same as A but for a session where the animal first moved onto the left face of the cube apparatus before the right face. C, A polar dot plot showing PFD shifts between relevant planes of locomotion for all three wall sessions recorded in light conditions. Each dot represents one recording session. Note that the cells' PFDs shifted ∼90° CW for rightward outside vertical corners and ∼90° CCW for leftward outside vertical corners.