Methods for the Follow-Up Study: Orientation

Trial Sequence --- Participants --- Real/Virtual Stimuli --- Box Layouts --- Raw Data

Trial Sequence:

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Step 1: Participants were standing at Zone 0 , and were looking at a blue, a pink, a red and a yellow box. They were asked to memorize where the boxes were, and could take as much time as they need. They were not allowed to leave zone 0 to look at the boxes. They were told that the blue and the pink box, as well as the red and the yellow box were always in the same visual direction no matter which box layout as viewed from zone 0.


Plan view of testing room with one box layout.

Orientations in "room coordinates".

Step 2: Participants walked down the long corridor and stopped either at zone a - like the colour amber , or at zone c - like the colour cyan . At these shooting zones, the participant could not see the 4 boxes any more.

Step 3: As soon as the participant reached the shooting location, a poster on eye height appeared either to the North, South or to the West of the shooting zone, indicating the colour of the box to shoot.

Step 4: Participants now used a hand-held pointer to shoot 6 times to each of the 4 boxes in a random order, which gave us 24 shooting directions.

Participants:

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  • 7 non-naïve participants aged between 22-31 (same participants tested in main experiment)
  • Gender: 1 male, 6 females
  • All participants were right-handed.
  • All 7 participants tested on: 6 box layouts; at 2 shooting zones; in virtual world; 26 shots in a random order to the boxes; with 3 different orientations at each shooting zone => 864 shooting directions per participant

Virtual Stimuli:

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Virtual World Stimuli

Box Layouts:

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There are 6 different box layouts (same 6 box layouts were tested in the main experiment), each box layout was tested at the two shooting zones a , and c , and tested in virtual reality. The blue and the pink were in the same visual direction as viewed from zone 0 , the same for the red and the yellow box.