Figure 5.

Navigational speed. (A) Mean turning speeds as a function of trial by command type. (B) Mean straightaway speeds as a function of trial by command type. (C) Mean normalized turning speeds. For each participant, turning speed on each trial was divided by the turning speed from trial 1 of the corresponding command type. (D) Mean normalized straightaway speeds. For each participant, straightaway speed on each trial was divided by the straightaway speed from trial 1 of the corresponding command type. Dotted lines: background street noise introduced to experiment. Red: tactile navigational commands. Black: auditory navigational commands. Error bars show +1 SE and −1 SE, respectively for the highest and lowest points at each comparison distance.