The return path conditions were altered to three different environments: condition A, no environmental change  (Fig. 1D), condition B, removal of boundary cues (Fig. 1E); and condition C, removal of surface detail (Fig. 1F).

Each return condition was presented three times per environment, with return conditions presented pseudo-randomly in each environment.

1. 20 seconds of habituation 
2. The user starts at site 1 which is marked by an inverted cone labelled “1”. 
3. The user is asked to walk in an ‘L’-shaped outward path to three different locations. Inverted cones 2 and 3 disappear once the user reaches them. An auditory stimulus and cone appearance alert the participants to walk to the next cone location.
4. Upon reaching cone 3, a message is projected onto the scene asking the user to talk back to location 1 using their memory via a return path.
5. The user presses the controller trigger once they think they have reached the estimated location for cone 1, ending the trial.