Abstract
The Eriksen flanker paradigm was used to clarify how well attention distribution can be controlled in real 3D space. A target was presented at the fixation point (120 cm from the observer), and a flanker stimulus was presented randomly 30, 81, 120, 158, or 230 cm from the observer. Compatible and incompatible conditions in terms of target and flanker shapes were used. The participants were required to identify the target shape while ignoring the flanker stimulus. There was no interference effect for any of the flanker stimuli even though they were presented along the observer’s central line of sight. This indicates that attention can be controlled adequately even if a flanker stimulus is presented in the depth direction. Different fashions of attention distribution between 2D and 3D spaces will be discussed.
