20 papers · ranked by Valyu relevance
Declan Devlin, Korbinian Moeller, Iro Xenidou-Dervou, Bert Reynvoet + 1 more
'Francesco Sella'] Number order processing is thought to be characterised by a reverse distance effect whereby consecutive sequences (e.g., 1-2-3) are processed faster than non-consecutive sequences (e.g., 1-3-5). However, there is accumulating evidence that the reverse distance effect is not consistently observed. In…
Victor Rodriguez-Lopez, Carlos Dorronsoro, Johannes Burge
Interocular differences in image blur can cause dramatic misperceptions of the distance and three-dimensional direction of moving objects. This new illusion—the reverse Pulfrich effect—is caused by the optical conditions induced by monovision, a common correction for presbyopia. Fortunately, anti-Pulfrich monovision…
Victor Rodriguez-Lopez, Carlos Dorronsoro, Johannes Burge
Interocular differences in image blur can cause processing speed differences that lead to dramatic misperceptions of the distance and three-dimensional direction of moving objects. This recently discovered illusion-the reverse Pulfrich effect-is caused by optical conditions induced by monovision, a common correction…
Alessandra Galmonte, Mauro Murgia, Fabrizio Sors, Valter Prpic + 1 more
'Tiziano Agostini'] Reverspectives are paintings created by the English artist Patrick Hughes. They are 3D structures, for example, pyramids or prisms, which elicit an illusory depth perception that corresponds to the reverse of the physical depth layout. Rogers and Gyani state that “the perspective information…
Srujal Shah, Ana Maria Mosquera Gomez, Payman Jalali, Lou Kondic
We consider experimentally and computationally the phenomenon of the reverse Janssen effect, involving the counterintuitive finding that the force on the base of a column containing granular particles may be larger than the weight of the granular material itself. This finding is in contrast to the common Janssen…
Nicholas J. Wade, Patrick Hughes
Stereoscopic photographs of works in reverse perspective do not reveal their three-dimensional structure whereas pseudoscopic photographs enhance the apparent depth effects.
Xiayi Gu, Han Yu, Hiroyuki Ito, Tama Kanematsu
Reverspectives and hollow masks cause a reversal of perceived depth when observed from a position beyond certain critical distances, even if viewed binocularly. Their 3D structures or images invariably contain a linear perspective, shading, or familiarity cue to depth. Using a concave screen, we demonstrate a novel…
Joshua J. Dobias, Thomas V. Papathomas, Vanja M. Vlajnic
The present experiment was designed to examine the roles of painted linear perspective cues, and the convexity bias that are known to influence human observers’ perception of three-dimensional (3D) objects and scenes. Reverse-perspective stimuli were used to elicit a depth-inversion illusion, in which far points on the…
Authors not listed
A framework for catalysis based on categorical aperture selection rather than temporal acceleration is presented. Traditional catalysis theory describes catalysts as agents that accelerate reactions by lowering activation energies, implicitly treating time as the fundamental variable and reaction rate enhancement as…
Keshav Rastogi, Eugy Han, Jeremy N. Bailenson
The distance between persons reveals significant information about their perception of each other. However, such information is not easily extractable and interpretable from video input. We developed an open-sourced library, Facial Interpersonal Distance Analysis and Coding (FIDAC) that transforms facial detection…
Johannes Burge, Victor Rodriguez-Lopez, Carlos Dorronsoro
Monovision corrections are a common treatment for presbyopia. Each eye is fit with a lens that sharply focuses light from a different distance, causing the image in one eye to be blurrier than the other. Millions of people in the United States and Europe have monovision corrections, but little is known about how…
Bas Rokers, Jacqueline M. Fulvio, Jonathan Pillow, Emily A. Cooper
People make surprising but reliable perceptual errors. Here, we provide a unified explanation for errors in the perception of three-dimensional (3D) motion. To do so, we characterized the retinal motion signals produced by objects moving with arbitrary trajectories through arbitrary locations in 3D. Next, we developed…
Catherine Manning, Kimberly Meier, Deborah Giaschi
Across two independent developmental labs, we have been puzzled by the observation that a small proportion of our child and adult participants consistently report perceiving motion in the direction opposite to that presented in random-dot motion displays, sometimes even when the motion is at 100% coherence. In this…
Matti Pouke, Evan G. Center, Alexis P. Chambers, Sakaria Pouke + 2 more
'Timo Ojala' 'Steven M. LaValle'] In this study we investigated the effect of body ownership illusion-based body scaling on physics plausibility in Virtual Reality (VR). Our interest was in examining whether body ownership illusion-based body scaling could affect the plausibility of rigid body dynamics similarly to…
Paul Linton
The visual system is supposed to extract distance information from the environment in order to scale the size and distance of objects in the visual scene. The purpose of this article is to challenge this account in three stages: First, I identify three shortcomings of the literature on vergence as our primary cue to…
Christophe Nickner
Several issues related to time directionality are discussed which are all directly or indirectly relevant to gravitation theory. Important clarifications are achieved regarding in particular the concept of negative energy and the associated notion of negative mass. Several difficulties associated with the possibility…
Dominik Hornof, Victoria Helm, Enar de Dios Rodríguez, Thomas Juffmann + 2 more
'Thomas Juffmann' 'Philipp Haslinger' 'P. Schattschneider'] We present an experimental visualization of the Terrell effect, an optical phenomenon predicted in 1959 by Roger Penrose and James Terrell, which reveals that the Lorentz contraction of a moving object is not visible in a snapshot photograph. Using fs-laser…
Paul Linton
Since 56 and 19, it’s been suggested that ‘vergence’ (the angular rotation of the eyes) plays a key role in size constancy. However, this has never been tested divorced from confounding cues such as changes in the retinal image. In our experiment participants viewed a target which grew or shrank over 5 seconds. At the…
Authors not listed
We present an ion-ion interaction based approach to synthesize tetrachloroauric acid (HAuCl4) sodium dodecyl sulphate reverse micelles in toluene, circumventing the limitations posed by bulky, crosslinked ligands. Our study elucidates the micelle formation mechanism, resulting in micelles where the ratio between the…
David Derbes
It is sometimes claimed that the twin "paradox" requires general relativity for a resolution. This paper presents a simple, exact resolution using only special relativity and the equivalence principle. Two earlier approximate solutions are considered, along with some background review to render the article…