Visual Discomfort From Flash Afterimages of Riloid Patterns.

abstract：:Although the Ebbinghaus illusion is commonly used as an example of a simple size-contrast effect, previous studies have emphasised its complexity by identifying many factors that potentially influence the magnitude of the illusion. Here, in a series of three experiments, we attempt to simplify this complexity. In each...

journal_title：Perception

authors： Roberts B,Harris MG,Yates TA

更新日期：2005-01-01 00:00:00

abstract：:Two experiments were performed to examine the suggestion that underlying memory mechanisms may be revealed in the form of the psychophysical function for duration. In experiment 1 a broad range of durations, with fine spacing at the lower end, was employed to bring out any transition in function that might reflect a c...

journal_title：Perception

authors： Waterworth JA

更新日期：1985-01-01 00:00:00

abstract：:We examine a shape illusion, in which the balconies of a building appear to tilt up or down, depending on the viewpoint. The balconies are actually level parallelogram shapes, but appear as tilted rectangles. We measured the illusory tilts observed when parallelogram shapes are viewed above the line of sight, using th...

journal_title：Perception

authors： Griffiths AF,Zaidi Q

更新日期：2000-01-01 00:00:00

abstract：:We investigated audio-visual (AV) perceptual integration by examining the effect of seeing the speaker's synchronised moving face on masked-speech detection ability. Signal amplification and higher-level cognitive accounts of an AV advantage were contrasted, the latter by varying whether participants knew the language...

journal_title：Perception

authors： Kim J,Davis C

更新日期：2003-01-01 00:00:00

abstract：:Visual object recognition was investigated in a group of eighty-one patients with right- or left-hemisphere lesions. Two tasks were used, one maximizing perceptual categorization by physical identity, the other maximizing semantic categorization by functional identity. The right-hemisphere group showed impairment on t...

journal_title：Perception

authors： Warrington EK,Taylor AM

更新日期：1978-01-01 00:00:00

abstract：:The Saturn illusion is a stereokinetic effect that occurs when a flat pattern composed of a full ellipse with two symmetrical semirings is rotated slowly in the frontoparallel plane. Subjects report seeing an egg-shaped object inserted into a circular ring, and the two objects move solidly into 3-D space as a single r...

journal_title：Perception

authors： Bressan P,Vallortigara G

更新日期：1987-01-01 00:00:00

abstract：:The application of theoretical neural networks to preprocessed images was investigated with the aim of developing a computational recognition system. The neural networks were trained by means of a back-propagation algorithm, to respond selectively to computer-generated bars and edges. The receptive fields of the train...

journal_title：Perception

authors： Moorhead IR,Haig ND,Clement RA

更新日期：1989-01-01 00:00:00

abstract：:In a geometrical figure in which long vertical lines are each crossed by a series of short oblique lines, an illusory effect is obtained such that the orientations of the long lines are perceived as nonvertical and shifted away from the orientation of the oblique lines (the Zöllner illusion). In addition, the vertical...

journal_title：Perception

authors： Earle DC,Maskell SJ

更新日期：1995-01-01 00:00:00

abstract：:Anchoring theory (Gilchrist et al, 1999 Psychological Review 106 795-834) predicts a wide range of lightness errors, including failures of constancy in multi-illumination scenes and a long list of well-known lightness illusions seen under homogeneous illumination. Lightness values are computed both locally and globall...

journal_title：Perception

authors： Zdravković S,Economou E,Gilchrist A

更新日期：2006-01-01 00:00:00

abstract：:In recent years a growing interest has emerged in numerosity perception in touch. Most of the studies on tactile numerosity perception have investigated its spatial aspect by testing the ability to count the number of items presented simultaneously. On the other hand, only a small number of studies have examined its t...

journal_title：Perception

authors： Iida N,Kuroki S,Watanabe J

更新日期：2016-01-01 00:00:00

abstract：:A theoretical analysis of the recovery of shape from optic flow highlights the importance of the deformation components; however, pure deforming stimuli elicit few responses from flow-sensitive neurons in the medial superior temporal (MST) area of the cerebral cortex. This finding has prompted the conclusion that MST ...

journal_title：Perception

authors： Ivins J,Porrill J,Frisby J,Orban G

更新日期：1999-01-01 00:00:00

abstract：:A brief history of quantitative assessments of interocular transfer (IOT) of the motion aftereffect (MAE) is presented. Recent research indicates that the MAE occurs as a consequence of adapting detectors for relative rather than retinal motion. When gratings above and below a stationary, fixated grating are moved in ...

journal_title：Perception

authors： Wade NJ,Swanston MT,de Weert CM

更新日期：1993-01-01 00:00:00

abstract：:Orthogonal gratings, presented dichoptically, do not fuse into a single percept. Parts of each are seen while other parts are suppressed in an unstable perception (binocular rivalry). However, it has been previously noted that, if the gratings are briefly flashed, they will appear to fuse into a plaid or checkerboard ...

journal_title：Perception

authors： Wolfe JM

更新日期：1983-01-01 00:00:00

abstract：:By varying target size, speed, and extent of visible motion we examined the timing accuracy in motion extrapolation. Small or large targets (0.2 or 0.8 deg) moved at either 2.5, 5, or 10 deg s(-1) across a horizontal path (2.5 or 10 deg) and then vanished behind an occluder. Observers responded when they judged that t...

journal_title：Perception

authors： Sokolov A,Pavlova M

更新日期：2003-01-01 00:00:00

abstract：:Humans understand mechanical events to involve physical bodies interacting by contact, but intentional events involve agents that can also interact at a distance. We investigated infant sensitivity to causality in a simple event in which one agent appears to react to another without contact. Infants 9 months old were ...

journal_title：Perception

authors： Schlottmann A,Surian L

更新日期：1999-01-01 00:00:00

abstract：:A series of lines pointing towards a central region induces an illusory brightness effect that is systematically related to the angle formed by the lines and the contour of the illusory brightness. As the lines veer to become tangents the illusory brightness decreases. ...

journal_title：Perception

authors： Kennedy JM

更新日期：1978-01-01 00:00:00

abstract：:We analyzed different contrast metrics to scale the stimulus strength for suprathreshold reaction times (RTs) when it is modulated along an achromatic channel (L + M) and both chromatic channels L/M and S/(L + M) considering increments and decrements along these axes. RTs were examined as a function of the Weber lumin...

journal_title：Perception

authors： O'Donell BM,Colombo EM

更新日期：2016-08-01 00:00:00

abstract：:Outline pictures depict surface edges, and via extensions from this base they can represent sensory and psychological referents. Outline drawings standing for edges of surfaces are relatively ancient, and lines for actions, sounds, and psychological states quite recent--mostly little more than a century. The novel fin...

journal_title：Perception

authors： Kennedy JM

更新日期：2009-01-01 00:00:00

abstract：:A technique is described for measuring visual preferences in cats. The method involves a self-presentation paradigm, but provides strict control of the visual field and orientation of contours in the field. Two procedures are presented: a single-choice design and a multiple-choice design, both of which use duration of...

journal_title：Perception

authors： Emerson VF,Timney B

更新日期：1977-01-01 00:00:00

abstract：:In prior work from this laboratory, we have examined how accurately subjects can judge collinearity, i.e. alignment, as a function of the angular position of stimulus elements. In those experiments, subjects were presented with a line segment (or a pair of dots) which varied across the 360 degrees range of angular pos...

journal_title：Perception

authors： Greene E,Frawley W

更新日期：2001-01-01 00:00:00

abstract：:A sudden luminance increment on a moving stimulus was perceived significantly along the trajectory, in the direction of motion, from its displayed position. A nonlinear relationship with stimulus speed, for a Fröhlich-like illusion, but not for the luminance-increment illusion, challenges certain models of spatial mis...

journal_title：Perception

authors： Habota T,Chappell M

更新日期：2011-01-01 00:00:00

abstract：:When viewing a wide-angle visual display, which rotates in the frontoparallel plane around the line of sight, observers experience an illusory shift of the direction of gravity; this shift leads to an apparent tilt of the body and displaces allocentric space coordinates. In this study, subjects adjusted an indicator t...

journal_title：Perception

authors： Mast FW,Berthoz A,Kosslyn SM

更新日期：2001-01-01 00:00:00

abstract：:A triangular-wave grating is perceived to fluctuate over time: at one moment it may appear veridical (ie triangular), at another it may more closely resemble a square-wave grating with rounded edges. In addition, the square-wave illusion itself is bistable, in that it sometimes appears to shift in phase by 180 deg. Ex...

journal_title：Perception

authors： Leguire LE,Blake R,Sloane M

更新日期：1982-01-01 00:00:00

abstract：:Numerous studies have shown that visual stimuli can bias the perceived location of auditory stimuli. Here, we sought to determine if a visual stimulus can also bias the perceived location of multiple internal auditory stimuli. Fifty subjects were presented with a train of eight binaural click-pairs over headphones whi...

journal_title：Perception

authors： Dellorso S,Schirillo J

更新日期：2010-01-01 00:00:00

abstract：:Three experiments were carried out to investigate whether amodal completion in pigeons can be facilitated by the use of colour photographs instead of highly artificial stimuli such as geometrical shapes. Ten pigeons were trained in a go/no-go procedure to discriminate between photographs of complete and of incomplete ...

journal_title：Perception

authors： Aust U,Huber L

更新日期：2006-01-01 00:00:00

abstract：:Children do not show the same recognition disadvantage for inverted faces as adults do. It has been suggested that this is because the configural encoding (which is disrupted by inversion) becomes more useful or available as we get older. The distinction between configural processing and featural processing, however, ...

journal_title：Perception

authors： Lewis MB

更新日期：2003-01-01 00:00:00

abstract：:For good ecological reasons humans assume that the illumination in pictures comes from overhead rather than from below. Recent work has also raised the possibility that the preferred angle of illumination is between 20 degrees and 30 degrees to the left of vertical, although the ecological basis for that is obscure. W...

journal_title：Perception

authors： McManus IC,Buckman J,Woolley E

更新日期：2004-01-01 00:00:00

abstract：:Crossmodal linkage between the olfactory and visual senses is still largely underexplored. In this study, we investigated crossmodal olfactory-visual associations by testing whether and how visual processing of objects is affected by the presence of olfactory cues. To this end, we explored the influence of prior learn...

journal_title：Perception

authors： Seigneuric A,Durand K,Jiang T,Baudouin JY,Schaal B

更新日期：2010-01-01 00:00:00

abstract：:An experiment is described in which photographs of everyday objects were masked by frequency-filtered random visual noise. The masking functions obtained were of the same type as those obtained by masking letters and words with random noise or a pattern mask. That is, the high-frequency mask produced a type A function...

journal_title：Perception

authors： Forster PM

更新日期：1982-01-01 00:00:00

abstract：:We examined the effect of visual attention on binocular fusion limits by using Posner's spatial cueing paradigm that entails cued shifts of attentional focus. Results showed that attention decreases the fusion limit. Observers perceived diplopia of a binocular line within +/-26.5 arcmin disparity (+/- correspond to un...

journal_title：Perception

authors： Kihara K,Ono H

更新日期：2018-10-01 00:00:00