Experiment 1.

a-c): Mean time-normalised trajectories for all 24 participants for each gaze condition when a) the left obstacle was shifted inwards, b) both obstacles were at the outer position, and c) the right obstacle was shifted inwards. d) The mean lateral hand position at the moment the obstacles were passed as a function of obstacle configuration and gaze condition. A position to the left of the midline results in a negative value and a position to the right a positive value. Error bars depict ± 1 SEM (between subjects).