People improved at a virtual maze task even when its barriers changed between trials, but gains in route length and completion time were slower. The peer-reviewed experiment analysed 132 participants and 2,116 trials. Extra distance explained only part of the time cost. The results distinguish navigation efficiency from whether participants acquired the task's underlying rule.
Participants became faster and took shorter routes as they practised finding coins in a virtual maze. Yet those gains developed more slowly when barriers changed between trials. The peer-reviewed desktop experiment compared stable and changing layouts while retaining the same search goal. Across 2,116 attempts, 132 participants searched four chests to locate two coins.[1]
The changing maze required adaptation to a new arrangement rather than repeated use of one successful route. Accounting for path length reduced the difference in duration, but did not remove it. Updating decisions or assessing the new layout could contribute to that residual time cost. Deliberation was not measured directly, however, so the experiment cannot identify which cognitive process accompanied the remaining delay.[1]
Tests of how participants acquired an optimal solution included differences that failed to remain significant under a multiple-comparison adjustment. Completion required a similar total number of trials in the two conditions. The findings consequently concern different dimensions of navigation performance, rather than a uniform impairment across all outcomes. A desktop task offers experimental control, but does not directly reproduce movement through real streets or diagnose a neurological condition.[1]
