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Target areas in each condition. The targets appeared at random points inside a ring-like 3-dimensional volume which was a selected section of a sphere that had its center at the center of the avatar, 130 cm above the floor level as shown in blue. The cross-section of the selected volume is shown on left (only the volume making an angle of 40° with the floor plane upwards and downwards) and included only the volume ranging from 40 to 50 cm radius as shown on right.
