Characteristics of locomotion derived from GPS data in the walking and searching tasks (orange = walking task, blue = search and retrieval task).

A) Example GPS recording of a participant’s path in the walking and searching tasks overlaid on a campus map. Graphs show differences in B) straightness ratio, C) mean walking speed, and D) SD of walking speed for Studies 1 and 2 according to task. Each symbol represents a single participant’s data; points are horizontally offset for visibility. Black error bars are centered on the mean and show ±1 standard error.