Path integration in large-scale space and with novel geometries: Comparing vector addition and encoding-error models
Fig 1
(A) HTC VIVE headset along with the handheld controllers used in the experiments. Participants walked on the Cyberith Virtualizer omnidirectional treadmill system allowing them to navigate a much larger space while in stationary ambulation. (B)Visualization of HTC VIVE handheld controllers’ feedback intensity based on the deviation of the angle. (C) Depiction of an equilateral triangle used in experiment 1. (D) Raw trace of participant’s path overlaid on the vector distances (dashed lines) between the points. The blue point denotes the G1’ and G2’ locations that the participant is guided to and the red points are the participant’s unique G1 and G2 locations for that trial. “D” refers to the actual distance walked by the participant when attempting to return to the origin. (E) Triangle templates used in experiment 1 overlaid on top of each other showing the different triangle types and denoting the internal angles. (F) Triangle templates used in Experiment 2 overlaid on top of each other showing how the length of side C varied over trials. (G) Raw trial where the participant over estimated distance and the angle. (H) Raw trial where the participant underestimated the distance and the angle.