Voluntary saccadic control in dyslexia.

abstract：:Face aftereffects can provide information on how faces are stored by the human visual system (eg Leopold et al, 2001 Nature Neuroscience 4 89-94), but few studies have used robustly represented (highly familiar) faces. In this study we investigated the influence of facial familiarity on adaptation effects. Participant...

journal_title：Perception

authors： Laurence S,Hole G

更新日期：2011-01-01 00:00:00

abstract：:An object flashed briefly in a given location, the moment another moving object arrives in the same location, is perceived by observers as lagging behind the moving object (flash-lag effect). Does the flash-lag effect occur if the retinal image of the moving object is rendered stationary by smooth pursuit of the movin...

journal_title：Perception

authors： Nijhawan R

更新日期：2001-01-01 00:00:00

abstract：:The solitaire illusion is an illusion of numerosity proposed by Frith and Frith. In the original version, an apparent number of elements was determined by the spatial arrangement of two kinds of elements (black and white marbles). In our study, an auditory version of the solitaire illusion was demonstrated. Participan...

journal_title：Perception

authors： Prpic V,Luccio R

更新日期：2016-12-01 00:00:00

abstract：:A computer-controlled display of random dots was used to study perceptions of depth. In this display, a field of stationary random dots surrounded a rectangular area in which random dots moved with uniform velocity in a single direction. The boundaries of this rectangle did not move. When dot motion was perpendicular ...

journal_title：Perception

authors： Royden CS,Baker JF,Allman J

更新日期：1988-01-01 00:00:00

abstract：:Using simple, single angular figures, including figures containing only one line, we have shown systematic misestimations of distance defined by these figures. These misestimations are not related to the absolute distance per se, but are related both to the size of the angle defining the distance, and to the part of t...

journal_title：Perception

authors： Heywood S,Chessell K

更新日期：1977-01-01 00:00:00

abstract：:Although the observer's motion can elicit perception of relative depth, it is less successful in doing so when competing pictorial information is available. However, the evidence for this may be affected by limited extents of motion and by equidistance tendencies. Results obtained when monocular observers judged the o...

journal_title：Perception

authors： Reinhardt-Rutland AH

更新日期：1993-01-01 00:00:00

abstract：:When a random-dot screen is used as a background for Ehrenstein figures, brightness enhancement is replaced by a change of grain and structure. Dots in the illusory area appear less densely packed and may be perceived as concentrically organized. When the screen is moved with respect to the Ehrenstein figures, the ill...

journal_title：Perception

authors： Spillmann L,Redies C

更新日期：1981-01-01 00:00:00

abstract：:One of the most common obstacles to object perception is the fact that objects often occlude parts of themselves and parts of other objects. Perceptual completion has been studied extensively in humans, and researchers have shown that humans do complete partly occluded objects. In an effort to understand more about th...

journal_title：Perception

authors： Sekuler AB,Lee JA,Shettleworth SJ

更新日期：1996-01-01 00:00:00

abstract：:Why attention lapses during prolonged tasks is debated, specifically whether errors are a consequence of under-arousal or exerted effort. To explore this, we investigated whether increased impulsivity is associated with effortful processing by modifying the demand of a task by presenting it at a quiet intensity. Here,...

journal_title：Perception

authors： Roebuck H,Guo K,Bourke P

更新日期：2015-12-01 00:00:00

abstract：:In three experiments, we explored how pigeons use edges, corresponding to orientation and depth discontinuities, in visual recognition tasks. In experiment 1, we compared the pigeon's ability to recognize line drawings of four different geons when trained with shaded images. The birds were trained with either a single...

journal_title：Perception

authors： Peissig JJ,Young ME,Wasserman EA,Biederman I

更新日期：2005-01-01 00:00:00

abstract：:New geometric analyses are presented of three impressive examples of the effects of location of the vantage point on virtual 3-D spaces conveyed by linear-perspective images. In the 'egocentric-road' effect, the perceived direction of the depicted road is always pointed towards the observer, for any position of the va...

journal_title：Perception

authors： Todorović D

更新日期：2005-01-01 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：:Visual environments often contain multiple elements, some of which are similar to one another or spatially grouped together. In the current study we investigated how one can use perceptual groups in representing ensemble features of the groups. In experiment 1 we found that participants' performance improved when item...

journal_title：Perception

authors： Im HY,Chong SC

更新日期：2014-01-01 00:00:00

abstract：:The influence of modality-encoding bias on the relative importance ('cognitive salience') of object shape, size, and material, with the last determined by weight and thermal variations, was examined. Experiment 1 confirmed that for these stimulus objects all five properties were very accessible haptically, as measured...

journal_title：Perception

authors： Lederman SJ,Summers C,Klatzky RL

更新日期：1996-01-01 00:00:00

abstract：:Stereoscopic processing of horizontal and vertical disparities was assessed by measuring how the stereoscopic appearance of test dots near the fixation point was influenced by inducing stimuli in the near periphery. The inducing stimuli were differentially magnified in the two eyes and varied in horizontal eccentricit...

journal_title：Perception

authors： Pettet MW

更新日期：1997-01-01 00:00:00

abstract：:Junctions, formed at the intersection of image contours, are thought to play an important and early role in vision. The interest in junctions can be attributed in part to the notion that they are local image features that are easy to detect but that nonetheless provide valuable information about important events in th...

journal_title：Perception

authors： McDermott J

更新日期：2004-01-01 00:00:00

abstract：:A technique of monocular eye patching was used to measure the response of infants three and four months old to nasally and temporally placed stimuli at various eccentricities in the visual field. The results indicated a field of field of binocular overlap of approximately 60 deg in infants three months old and 80 deg ...

journal_title：Perception

authors： Finlay D,Quinn K,Ivinskis A

更新日期：1982-01-01 00:00:00

abstract：:In an earlier paper, Caelli and Finlay demonstrated that the perception of apparent motion was contingent on critical phase relationships between inducing sources, and their spatio-temporal frequency ranges. In their original stimulus red-green centre-surround sources were used and phase-specific inhibition was found ...

journal_title：Perception

authors： Finlay D,Caelli T

更新日期：1979-01-01 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 viewing two conflicting stimuli in a stereoscope, males reported seeing objects significantly more often than human figures. The opposite effect was observed in females. ...

journal_title：Perception

authors： McGuinness D,Symonds J

更新日期：1977-01-01 00:00:00

abstract：:Outline drawings in a raised form were made by a blind woman, Tracy, who has been blind from very early in life. Highly practiced in drawing, she reports she is largely self-taught. To invoke matters of projection, she was asked to represent an object with faces slanting away from the observer, a fixed array from diff...

journal_title：Perception

authors： Kennedy JM,Igor J

更新日期：2003-01-01 00:00:00

abstract：:The mirror puzzle related to the perception of mirror images as left-right reversed can be more fully understood by considering an extended problem that includes also the perception of mirror images that are not left-right reversed. The purpose of the present study is to clarify the physical aspect of this extended pr...

journal_title：Perception

authors： Yoshimura H,Tabata T

更新日期：2007-01-01 00:00:00

abstract：:The effect of contrast on the perception of stimulus speed for stereomotion and monocular lateral motion was investigated for successive matches in random-dot stimuli. The familiar 'Thompson effect'--that a reduction in contrast leads to a reduction in perceived speed--was found in similar proportions for both binocul...

journal_title：Perception

authors： Brooks K

更新日期：2001-01-01 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：:In the rubber-hand illusion (RHI), when an actual hand hidden from view and a rubber hand in view are simultaneously stimulated, participants mistakenly perceive tactile sensation as arising from the rubber hand, not from the actual hand. Some studies have revealed that the magnitude of RHI decreases when the actual a...

journal_title：Perception

authors： Ide M

更新日期：2013-01-01 00:00:00

abstract：:We compared the contribution and the effectiveness of modulating the orientation perception of two types of visual information: the visual frame and the visual polarity of objects. In experiment 1, we examined the effect of a square frame, a mouse, an elephant, and a map of France on the apparent vertical. In the upri...

journal_title：Perception

authors： Cian C,Raphel C,Barraud PA

更新日期：2001-01-01 00:00:00

abstract：:This paper focuses on the epistemic conditions of visual perception, ie it concentrates on the question of what kind of knowledge is required for us in order to be able to see colours and shapes as spatial properties of things. According to contemporary theories of sensory perception that follow the tradition of Georg...

journal_title：Perception

authors： Schumacher R

更新日期：2008-01-01 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：:The use of nonspatial attentional mechanisms in search tasks was investigated by presenting observers with stimuli that contained 4-12 elements located on a circle around the fixation point. The elements differed in one of six nonspatial 'dimensions', namely orientation, contrast, scale, number of cycles, 'shape', and...

journal_title：Perception

authors： de Haan E,Lutz C,Noest AJ

更新日期：1996-01-01 00:00:00

abstract：:A new facial composites technique is demonstrated, in which photographs of the top and bottom halves of different familiar faces fuse to form unfamiliar faces when aligned with each other. The perception of a novel configuration in such composite stimuli is sufficiently convincing to interfere with identification of t...

journal_title：Perception

authors： Young AW,Hellawell D,Hay DC

更新日期：2013-01-01 00:00:00