Fig 4. The used experimental setup.

A: Experimenter showing the participant a meter stick with additional labels every 10 centimeters. B: Participant during the distance judgment task using the NVisor SX 60 HMD. C: The sparse-cue virtual environment used for Experiments 1–3. Note: The individuals in these images have given written informed consent (as outlined in PLOS consent form) to publish these case details.