格子縞の上の直方体の錯視に関する実験的研究

概要

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When we tilt the Imai-Suto illusion, a reduced-height rectangular parallelepiped is observed. In the present study, we investigated the factors that are thought to affect the illusion. The background of the figure (e.g., cross stripes) did not affect the illusion, suggesting that the cross stripes are not an induced figure. Binocular disparity effects were suppressed in this illusion. The observed height in the monocular viewing condition was significantly shorter than that in the binocular viewing condition. The pictorial depth cues of the rectangular parallelepiped appeared to induce the illusion. We also found a related visual illusion, namely a reduced-height rectangular parallelepiped that was observed three-dimensionally in the monocular viewing condition.
2012-03-31