منابع مشابه
The Leaning Tower illusion: a new illusion of perspective.
We would like to describe a new illusion of perspective that to our knowledge has not been reported before. Figure 1 shows two images of the Leaning Tower of Pisa placed next to one another. One obtains a strong impression that the tower on the right leans more, as if photographed from a different angle. Yet the two images are identical, as close inspection will reveal. The explanation for this...
متن کاملIncreasing Perspectival Obliqueness Increases the Leaning Tower Illusion
The leaning tower illusion is a perceptual illusion in which two identical images of a tower photographed from below appear to diverge when juxtaposed. We manipulated the perceived obliqueness of the (upright) St Mark bell tower in Venice by modifying two parameters both related to the position of the camera with respect to the tower: (a) increasing the peripherality of the tower and (b) reduci...
متن کاملOn the quantum analogue of Galileo’s leaning tower experiment
The quantum analogue of Galileo’s leaning tower experiment is revisited using wave packets evolving under the gravitational potential. We first calculate the position detection probabilities for particles projected upwards against gravity around the classical turning point and also around the point of initial projection, which exhibit mass dependence at both these points. We then compute the me...
متن کاملLeaning to the left makes the Eiffel Tower seem smaller: posture-modulated estimation.
In two experiments, we investigated whether body posture influences people's estimation of quantities. According to the mental-number-line theory, people mentally represent numbers along a line with smaller numbers on the left and larger numbers on the right. We hypothesized that surreptitiously making people lean to the right or to the left would affect their quantitative estimates. Participan...
متن کاملLeaning Tower illusion: Orientation contrast or perspective distortion? Reply to Maniatis
perspective, as proposed by us (Kingdom et al 2007a, 2007b), but a variant of the Jastrow illusion. Maniatis suggests that the Jastrow illusion is an example of simultaneous size contrast, and that the Leaning Tower illusion is the orientation analog of the Jastrow. In other words the Leaning Tower illusion is an example of simultaneous tilt (or orientation) contrast, or acute-angle expansion, ...
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ژورنال
عنوان ژورنال: Nature
سال: 1979
ISSN: 0028-0836,1476-4687
DOI: 10.1038/279107a0