Figure 1.

An experimental paradigm to study the role of visual feedback in exploratory walking

(A) Left: two control systems affecting gaze during walking. Right: possible walking trajectories when each system controls behavior. OMR: optomotor response system; PS: posture stabilizer system.

(B) Virtual reality setup for freely walking flies (STAR Methods).

(C) Top: low-magnification view of a walking fly. Bottom: the corresponding high-magnification view with head (red segment), body (green cross), and leg (colored dots) tracked.

(D) Occupancy probability in darkness (top) and in light (bottom).

(E) Virtually constrained visual feedback. See also Video S1.