van der Smagt Maarten J, Stoner Gene R
Vision Center Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037-1099, USA.
Perception. 2002;31(1):39-50. doi: 10.1068/p3267.
A horizontally moving vertical grating viewed through a diamond-shaped aperture can be made to appear to move either upwards or downwards by introduction of appropriate depth-ordering cues at the boundaries of the aperture (Duncan et al. 2000 Journal of Neuroscience 20 5885-5897). The grating is perceived to move towards (and sliding under) occluding 'near' surfaces, and parallel to 'far' surfaces. Here we show that these depth-ordering cues affect the perceptual interpretation of the motion aftereffect (MAE) as well. After adaptation to unambiguous horizontal motion, the MAE direction deviates from horizontal towards near surfaces. However, the influence of depth-ordering cues on the illusory motion of the MAE is generally less than that seen for 'real' motion. Implications for theories of depth-motion and depth-MAE interactions are discussed.
通过菱形孔径观察水平移动的垂直光栅时，在孔径边界引入适当的深度排序线索，可使光栅看起来向上或向下移动（邓肯等人，《神经科学杂志》2000年第20卷，5885 - 5897页）。光栅被感知为朝着遮挡的“近”表面移动（并在其下方滑动），且与“远”表面平行。我们在此表明，这些深度排序线索也会影响运动后效（MAE）的感知解释。在适应明确的水平运动后，MAE方向会从水平方向偏向近表面。然而，深度排序线索对MAE虚幻运动的影响通常小于对“真实”运动的影响。本文讨论了对深度运动和深度-MAE相互作用理论的启示。
