Prinzmetal W, Beck D M
Department of Psychology, University of California, Berkeley 94720-1650, USA.
J Exp Psychol Hum Percept Perform. 2001 Feb;27(1):206-17. doi: 10.1037//0096-1523.27.1.206.
The authors argue that changes in the perception of vertical and horizontal caused by local visual cues can account for many classical visual illusions. Because the perception of orientation is influenced more by visual cues than gravity-based cues when the observer is tilted (e.g., S. E. Asch & H. A. Witkin, 1948), the authors predicted that the strength of many visual illusions would increase when observers were tilted 30 degrees. The magnitude of Zöllner, Poggendorff, and Ponzo illusions and the tilt-induction effect substantially increased when observers were tilted. In contrast, the Müller-Lyer illusion and a size constancy illusion, which are not related to orientation perception, were not affected by body orientation. Other theoretical approaches do not predict the obtained pattern of results.
作者认为，由局部视觉线索引起的垂直和水平感知变化可以解释许多经典视觉错觉。由于当观察者倾斜时，方向感知受视觉线索的影响比受基于重力的线索的影响更大（例如，S.E.阿施和H.A.威特金，1948年），作者预测当观察者倾斜30度时，许多视觉错觉的强度会增加。当观察者倾斜时，佐尔纳错觉、波根多夫错觉和庞佐错觉的程度以及倾斜诱导效应显著增加。相比之下，与方向感知无关的缪勒-莱尔错觉和大小恒常性错觉不受身体方向的影响。其他理论方法无法预测所获得的结果模式。
