Hunger was found to facilitate visually induced illusory upward and downward self-motions (vertical vection), but not illusory self-motion in depth (vection in depth). We propose that the origin of this hunger effect lies in the possibility that vertical self-motions (both real and illusory) are more likely to induce changes in visceral state.
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Seno, T., Ito, H., Sunaga, S. & Palmisano, S. (2012). Hunger enhances vertical vection. Perception, 41 1003-1006.