Bistability and biasing effects in the perception of ambiguous point-light walkers.

abstract：:In three-dimensional configurations, and two-dimensional pictures of such configurations, simultaneous contrast induction from proximate backgrounds affects perceived brightness, color, and internal contrast to a greater extent than induction from coplanar or occluding surrounds or from more distant backgrounds. In th...

journal_title：Perception

authors： Zaidi Q,Spehar B,Shy M

更新日期：1997-01-01 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：:Conditions for perceptual modal completion are investigated using a stimulation pattern consisting of a figure moving behind a black opaque strip. This configuration leads, depending on conditions, either to the amodal Michotte tunnel effect, or to modal completion, ie the apparent transparency phenomenon. Four experi...

journal_title：Perception

authors： Hambrouck M,Thinès G,Michiels M

更新日期：1987-01-01 00:00:00

abstract：:We investigated audiovisual speed perception to test the maximum-likelihood-estimation (MLE) model of multisensory integration. According to MLE, audiovisual speed perception will be based on a weighted average of visual and auditory speed estimates, with each component weighted by its inverse variance, a statisticall...

journal_title：Perception

authors： Bentvelzen A,Leung J,Alais D

更新日期：2009-01-01 00:00:00

abstract：:Adapting to a drifting grating (temporal frequency 4 Hz, contrast 0.4) in the periphery gave rise to a motion aftereffect (MAE) when the grating was stopped. A standard unadapted foveal grating was matched to the apparent velocity of the MAE, and the matching velocity was approximately constant regardless of the visua...

journal_title：Perception

authors： Wright MJ

更新日期：1986-01-01 00:00:00

abstract：:Underwood (1975) has used judgments of duration to compare the attentional demands of learning and recall. His study is critically discussed and two further experiments are reported. In experiment 1 subjects spent 50 s learning a list of words and a further 50 s either trying to recall them or learning another list. I...

journal_title：Perception

authors： Gray C

更新日期：1982-01-01 00:00:00

abstract：:When a narrow uniform gap was surrounded by a moving grating, the gap appeared as a grating in the opposite phase to that of the surround, moving in the same direction with the same speed. Contrast thresholds for moving test-gratings placed in the region of the uniform gap were found to be elevated after prolonged vie...

journal_title：Perception

authors： Zaidi Q,Sachtler WL

更新日期：1991-01-01 00:00:00

abstract：:Under suitable conditions, pupillary dilation is a reliable index of processing activity. Pupil size was tracked in male and female observers following the presentation of face stimuli for an age-judgment task. The eyes on the faces were either directed towards the observer or deviated to the side. Pupil dilation acco...

journal_title：Perception

authors： Porter G,Hood BM,Troscianko T

更新日期：2006-01-01 00:00:00

abstract：:When a bilaterally asymmetrical figure is drawn on the skin at various bodily positions, the observer often reports that the figure he "sees" is reversed. On the head and neck, for example, figures drawn to the front of an imaginary line through the centre of the head, approximately in line with the ear canal are seen...

journal_title：Perception

authors： Corcoran DW

更新日期：1977-01-01 00:00:00

abstract：:We present a novel three-dimensional (3-D) version of Rubin's classical bistable goblet-profiles figure. An actual goblet sculpture was produced and rotated on a turntable in front of a white background. As the goblet rotates about its central axis, small circular asymmetries around the lips and chin region give a cle...

journal_title：Perception

authors： Wake H,Wake T,Oyama T

更新日期：2014-01-01 00:00:00

abstract：:Multisensory integration is a powerful mechanism for maximizing sensitivity to sensory events. We examined its effects on auditory localization in healthy human subjects. The specific objective was to test whether the relative intensity and location of a seemingly irrelevant visual stimulus would influence auditory lo...

journal_title：Perception

authors： Bolognini N,Leo F,Passamonti C,Stein BE,Làdavas E

更新日期：2007-01-01 00:00:00

abstract：:Reflections on the senses, and particularly on vision, permeate the writings of Galileo Galilei, one of the main protagonists of the scientific revolution. This aspect of his work has received scant attention by historians, in spite of its importance for his achievements in astronomy, and also for the significance in ...

journal_title：Perception

authors： Piccolino M,Wade NJ

更新日期：2008-01-01 00:00:00

abstract：:When the dynamic visual noise of an untuned television set is viewed with image defocusing (positive lenses) and with a narrow vertical obstruction partially blocking the pupil of one eye, the video 'snow' seems to separate into two stable surfaces at different depths, divided by a vertical discontinuity. The main fea...

journal_title：Perception

authors： Enright JT

更新日期：1984-01-01 00:00:00

abstract：:The background which led Stiles to the discovery that the color of a monochromatic ray of light varied with its angle of incidence on the retina, and the developments in the subject since 1937 when this discovery was reported are summarized. Stiles's original measurements of the 'hue shift' did not successfully quanti...

journal_title：Perception

authors： Alpern M

更新日期：1986-01-01 00:00:00

abstract：:How do humans combine the velocity information from two moving gratings (plaids) to detect pattern motion direction?-We are still unable to answer this question. The 'intersection of constraints' rule (IOC-Adelson and Movshon, 1982 Nature 300 523-525), and the 'vector average' rule (VA-Wilson et al, 1992 Visual Neuros...

journal_title：Perception

authors： Bowns L

更新日期：2006-01-01 00:00:00

abstract：:We report two experiments in which we used animated averaged faces to examine infants' ability to perceive and discriminate facial motion. The faces were generated by using the motion recorded from the faces of volunteers while they spoke. We tested infants aged 4-8 months to assess their ability to discriminate facia...

journal_title：Perception

authors： Spencer J,O'Brien J,Johnston A,Hill H

更新日期：2006-01-01 00:00:00

abstract：:An optical-geometrical illusion, described by Delboeuf and not familiar to specialists, is investigated. The results of two experiments show that the divergence between a bar filled with parallel slanting lines and a line drawn above it is clearly related to this angle of the lines which fill the bar. The illusion is ...

journal_title：Perception

authors： Vicario GB,Vidotto G,Zambianchi E

更新日期：1993-01-01 00:00:00

abstract：:The effect of age-induced changes on face recognition were investigated as a means of exploring the role of age in the encoding of new facial memories. The ability of participants to recognise each of six previously learnt faces was tested with versions which were either identical to the learnt faces, the same age (bu...

journal_title：Perception

authors： George PA,Hole GJ

更新日期：1998-01-01 00:00:00

abstract：:There was no significant change in flow rates of parotid saliva in nineteen of twenty subjects while they viewed photographs of lemons, or in fourteen of twenty subjects while they cut lemons in a glove box. Neither parotid nor whole-mouth secretion changed from baseline when subjects viewed fresh lemons and lemonade ...

journal_title：Perception

authors： Pangborn RM,Witherly SA,Jones F

更新日期：1979-01-01 00:00:00

abstract：:Recognition of unfamiliar faces is difficult in part due to variations in expressions, angles, and image quality. Studies suggest shape and surface properties play varied roles in face learning, and identification of unfamiliar faces uses diagnostic pigmentation/surface reflectance relative to shape information. Here,...

journal_title：Perception

authors： Sandford A,Pec D,Hatfield AN

更新日期：2021-01-01 00:00:00

abstract：:In two studies, observers searched for a single oblique target in a field of vertical distractors. In one experiment, target detection and identification (left versus right tilt) were compared. In another experiment, detection and localization were compared for the left versus the right half of the display. Performanc...

journal_title：Perception

authors： Green M

更新日期：1992-01-01 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：:The human visual system is sensitive to both first-order variations in luminance and second-order variations in local contrast and texture. Although there is some debate about the nature of second-order vision and its relationship to first-order processing, there is now a body of results showing that they are processe...

journal_title：Perception

authors： Schofield AJ

更新日期：2000-01-01 00:00:00

abstract：:We estimated the location of the auditory egocentre in congenitally blind, late-onset blind, and normally sighted participants, using a revised auditory version of Howard and Templeton's method. The mean location of the auditory egocentre of the congenitally blind participants was found to be close to the midpoint of ...

journal_title：Perception

authors： Sukemiya H,Nakamizo S,Ono H

更新日期：2008-01-01 00:00:00

abstract：:Phenomena associated with 'central visual persistences' (CPs) are new to both medical and psychological literature. Five subjects have reported similar CPs: positive afterimages following brief fixation of high-contrast objects or drawings and eye closure. CPs duplicate shapes and colors of single objects, lasting for...

journal_title：Perception

authors： Ingle D

更新日期：2005-01-01 00:00:00

abstract：:The effects of a foreground stimulus on vection (illusory perception of self-motion induced by a moving background stimulus) were examined in two experiments. The experiments reveal that the presentation of a foreground pattern with a moving background stimulus may affect vection. The foreground stimulus facilitated v...

journal_title：Perception

authors： Nakamura S,Shimojo S

更新日期：1999-01-01 00:00:00

abstract：:The magnitude of the barber-pole illusion is measured as a function of the contrast, orientation, and phase difference between the moving 'barber-pole' grating and a moving 'surround' grating that forms the aperture surface. It is found that as the difference between the barber-pole grating and the surround grating in...

journal_title：Perception

authors： Mussap AJ,Te Grotenhuis K

更新日期：1997-01-01 00:00:00

abstract：:'Preattentive' vision is typically considered to include several low-level processes, including the perception of depth from binocular disparity and motion parallax. However, doubt was cast on this model when it was shown that a secondary attentional task can modulate the motion aftereffect (Chaudhuri, 1990 Nature 344...

journal_title：Perception

authors： Rose D,Bradshaw MF,Hibbard PB

更新日期：2003-01-01 00:00:00

abstract：:Binocular rivalry was induced between two orthogonal square-wave gratings of the same spatial frequency, luminance, contrast, and field size, presented dichoptically. One of the gratings could be instantly replaced by a third grating differing only in orientation. In one experiment subjects were required to respond as...

journal_title：Perception

authors： O'Shea RP,Crassini B

更新日期：1981-01-01 00:00:00

abstract：:Can people with different forms of low vision use motion parallax to improve depth judgments? We used a staircase method to compare depth thresholds using motion parallax and static viewing. We tested eighteen normal-vision subjects with a range of simulated deficits in acuity, contrast sensitivity, and simulated peri...

journal_title：Perception

authors： Jobling JT,Mansfield JS,Legge GE,Menge MR

更新日期：1997-01-01 00:00:00