Duration differences: attentional demand or time error?

abstract：:Motion is perceived whenever a subject is presented with an appropriate spatiotemporal visual pattern. Like many other visual tasks, motion perception involves both local and global processing, and thus might be subject to the well-known paradox that arises from the fact that local features and observations form the b...

journal_title：Perception

authors： Hermush Y,Yeshurun Y

更新日期：1995-01-01 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：:A relatively frequent error when reporting brief visual displays is to combine presented features incorrectly. It has been proposed that Gestalt grouping constrains such errors so that miscombined features tend to come from the same perceptual group. In three experiments it was examined whether this principle applies ...

journal_title：Perception

authors： Baylis GC,Driver J,McLeod P

更新日期：1992-01-01 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

abstract：:Previous studies have suggested that physiological responses are greatest and face recognition performance is best when a band of middle relative spatial frequencies (SFs) is included in stimuli. Conversely, behavioural data suggest that object recognition performance shows comparatively little effect of SF variations...

journal_title：Perception

authors： Collin CA,Therrien ME,Campbell KB,Hamm JP

更新日期：2012-01-01 00:00:00

abstract：:A one-handed ball-catching task was used to study the disturbance of depth judgement induced by telestereoscopic viewing (ie viewing with increased effective interocular separation), the recovery of performance with experience in the telestereoscope, and the errors that subsequently arose when the telestereoscope was ...

journal_title：Perception

authors： Judge SJ,Bradford CM

更新日期：1988-01-01 00:00:00

abstract：:When a shape defined by a set of dots plotted along its contour is presented in a sequence of frames within the boundaries of a slit, and in each frame only one dot (featureless frame) or two dots (feature frame) are displayed, a whole moving dotted shape is perceived. Masking techniques and psychophysical measures ha...

journal_title：Perception

authors： Casco C,Morgan M

更新日期：1984-01-01 00:00:00

abstract：:If a pair of dots, diametrically opposed to each other, is flashed in perfect alignment with another pair of dots rotating about the visual fixation point, most observers perceive the rotating dots as being ahead of the flashing dots (flash-lag effect). This psychophysical effect was first interpreted as the result of...

journal_title：Perception

authors： Baldo MV,Kihara AH,Namba J,Klein SA

更新日期：2002-01-01 00:00:00

abstract：:Previous research into the effects of viewpoint change on face recognition has typically dealt with rotations around the head's vertical axis (yaw). Another common, although less studied, source of viewpoint variation in faces is rotation around the head's horizontal pitch axis (pitch). In the current study we used bo...

journal_title：Perception

authors： Favelle SK,Palmisano S,Maloney RT

更新日期：2007-01-01 00:00:00

abstract：:A 12-year-old child (DI) who was completely blind from birth, made a series of tactual (raised-lines) drawings of cars. Among them, there was the depiction of a 'fast car at night' in which DI drew beams of light projecting out of the car. We analyse this drawing, and the preceding ones. We argue that the way in which...

journal_title：Perception

authors： D'Angiulli A,Maggi S

更新日期：2004-01-01 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：:Thresholds were measured for discriminating changes in the slopes of the amplitude spectra of stimuli derived from photographs of natural scenes and from random-luminance patterns. The variety and magnitudes of the thresholds could be explained by a model based on the discrimination of the changes in band-limited loca...

journal_title：Perception

authors： Tolhurst DJ,Tadmor Y

更新日期：1997-01-01 00:00:00

abstract：:The perceived lightness of grey bars within grey-white and grey-black square-wave test gratings was measured in the presence of different surrounding regions (plain black, plain white, or black-white square-wave gratings). The results for the grey-white test gratings are explained in terms of three separate processes:...

journal_title：Perception

authors： White M

更新日期：1981-01-01 00:00:00

abstract：:Op-art-based stimuli have been shown to be uncomfortable, possibly due to a combination of fixational eye movements (microsaccades) and excessive cortical responses. Efforts have been made to measure illusory phenomena arising from these stimuli in the absence of microsaccades, but there has been no attempt thus far t...

journal_title：Perception

authors： O'Hare L

更新日期：2017-06-01 00:00:00

abstract：:The relationship between apparent size and apparent distance is given by Emmert's law, which states that a retinal image is proportional in size to the distance of the surface it is projected upon. This principle also applies to retinal afterimages in that they, too, will change in apparent size if distance cues sugge...

journal_title：Perception

authors： Bross M

更新日期：2000-01-01 00:00:00

abstract：:The Alternating Brightness Star (ABS) is an illusion that provides insight into the relationship between brightness perception and corner angle. Recent psychophysical studies of this illusion have shown that corner salience varies parametrically with corner angle, with sharp angles leading to strong illusory percepts ...

journal_title：Perception

authors： Troncoso XG,Tse PU,Macknik SL,Caplovitz GP,Hsieh PJ,Schlegel AA,Otero-Millan J,Martinez-Conde S

更新日期：2007-01-01 00:00:00

abstract：:In the work reported in the literature the reduction or decrement in the magnitude of the Müller-Lyer illusion with continued inspection has been typically investigated with the use of the composite illusion form. Three experiments are reported in which the illusion decrement was separately examined in the underestima...

journal_title：Perception

authors： Predebon J,Stevens K,Petocz A

更新日期：1993-01-01 00:00:00

abstract：:Two experiments are reported on the effect of feature masking on judgements of the sex and familiarity of faces. In experiment 1 the effect of masking the eyes, nose, or mouth of famous and nonfamous, male and female faces on response times in two tasks was investigated. In the first, recognition, task only masking of...

journal_title：Perception

authors： Roberts T,Bruce V

更新日期：1988-01-01 00:00:00

abstract：:Sex differences were investigated in two experiments on visual persistence: the Ganzfeld and the afterimage. Males were found to hold visual sensation longer than females, particularly in the Ganzfeld where there was little overlap of scores. Variability of experience in the Ganzfeld was also greater for males and the...

journal_title：Perception

authors： McGuinness D,Lewis I

更新日期：1976-01-01 00:00:00

abstract：:Spatial arrangement is known to influence enumeration times in vision. In haptic enumeration, it has been shown that dividing the total number of items over the two hands can speed up enumeration. Here we investigated how spatial arrangement of items and non-items presented to the individual fingers impacts enumeratio...

journal_title：Perception

authors： Overvliet KE,Plaisier MA

更新日期：2016-01-01 00:00:00

abstract：:Two psychophysical experiments are reported, one dealing with the visual perception of the head orientation of another person (the 'looker') and the other dealing with the perception of the looker's direction of eye gaze. The participant viewed the looker with different retinal eccentricities, ranging from foveal to f...

journal_title：Perception

authors： Loomis JM,Kelly JW,Pusch M,Bailenson JN,Beall AC

更新日期：2008-01-01 00:00:00

abstract：:By analyzing the projection plane in terms of the projected size of different elements on a surface, it is shown how the direction of the perpendicular, from the station point to the surface, is an important variable in the derivation of the slant angle. It is also shown that the test surfaces used in traditional slan...

journal_title：Perception

authors： Perrone JA

更新日期：1980-01-01 00:00:00

abstract：:Unfamiliar odours are harder to discriminate than familiar odours. We explored the phenomenal basis of this difference. In experiments la and 1b, participants profiled odour quality for two sets of familiar and unfamiliar odours. In both cases unfamiliar odours were redolent of more odour qualities than familiar stimu...

journal_title：Perception

authors： Mingo SA,Stevenson RJ

更新日期：2007-01-01 00:00:00

abstract：:A history of the observational era of vision is presented through selected descriptions of phenomena by natural philosophers from Aristotle to Wheatstone. The descriptions are listed under the headings of optics, colour, subjective visual phenomena, motion perception, eye movements, binocular vision, and space percept...

journal_title：Perception

authors： Wade NJ

更新日期：1996-01-01 00:00:00

abstract：:Two experiments were conducted. In experiment 1, part 1, binaural and monaural localization of sounds originating in the left hemifield was investigated. 104 loudspeakers were arranged in a 13 x 8 matrix with 15 degrees separating adjacent loudspeakers in each column and in each row. In the horizontal plane (HP), the ...

journal_title：Perception

authors： Butler RA,Humanski RA,Musicant AD

更新日期：1990-01-01 00:00:00

abstract：:Can the motion system selectively process elements at a particular depth? We attempted to answer this question using global coherence tasks in which signal and noise elements could be given different disparities. In experiment 1 we found that, if all the signal elements had a disparity different from that of the noise...

journal_title：Perception

authors： Snowden RJ,Rossiter MC

更新日期：1999-01-01 00:00:00

abstract：:Subjects were presented with projections of either rectangular or elliptic forms which appeared either on their own or upon the following figures: (a) a face of a portrayed cube, (b) a parallelogram identical with (a), and (c) a rectangle of equal width and area to (a). Four different angles of projection were used fo...

journal_title：Perception

authors： Kaess DW,Deregowski JB

更新日期：1980-01-01 00:00:00

abstract：:Mach bands are illusory bright and dark bands seen where a luminance plateau meets a ramp, as in half shadows or penumbras. It has previously been shown that Mach bands are attenuated by placing stimuli, such as bars, nearby. It was shown in an experiment in which Mach-band attenuation for bar and Craik-O'Brien stimul...

journal_title：Perception

authors： Pessoa L

更新日期：1996-01-01 00:00:00

abstract：:Tempo is one factor that is frequently associated with the expressive nature of a piece of music. Composers often indicate the tempo of a piece of music through the use of numerical markings (beats min(-1)) and subjective terms (adagio, allegro). Three studies were conducted to assess whether listeners were able to ma...

journal_title：Perception

authors： Quinn S,Watt R

更新日期：2006-01-01 00:00:00

abstract：:How is chromatic contrast combined binocularly? One index of binocularity is the binocular contrast summation ratio (BCSR), which is the improvement in contrast sensitivity with binocular rather than monocular presentation. Simmons and Kingdom (1998, Vision Research 38 1063-1071) noted that BCSRs with some red-green i...

journal_title：Perception

authors： Simmons DR

更新日期：2005-01-01 00:00:00