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 isoluminant stimuli were suggestive of full linear summation. This suggestion was investigated further in four subjects by measuring binocular and monocular contrast thresholds for the detection of 0.5 cycle deg(1) isoluminant (red-green) and isochromatic (yellow-black) Gabor patches. These Gabor patches had either vertically or horizontally oriented carrier gratings and were either dichoptically in phase (same coloured bars in binocular correspondence) or in dichoptic anti-phase (opposite coloured bars in binocular correspondence). Full linear summation would be indicated by BCSRs of 2 for the in-phase and close to 0 for the anti-phase conditions. Mean BCSRs at isoluminance were 1.93 and 0.90, respectively, for the in-phase and anti-phase stimuli with horizontal carriers, the former being consistent with full linear summation, but the latter not. Despite these results, BCSRs obtained with isoluminant and isochromatic stimuli under similar conditions were not statistically distinguishable from each other, although there was a tendency for summation at isoluminance with in-phase stimuli to be higher and anti-phase stimuli to be lower. These data fall short of demonstrating full linear summation of chromatic contrast between the eyes under all presentation conditions, but they do indicate that there are strong binocular interactions at red-green isoluminance, which are similar to, and possibly even stronger than, those obtained with luminance stimuli.
journal_name
Perceptionjournal_title
Perceptionauthors
Simmons DRdoi
10.1068/p5279keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
1035-42issue
8eissn
0301-0066issn
1468-4233journal_volume
34pub_type
杂志文章相关文献
PERCEPTION文献大全abstract::The impact that the analysis of sound waves has made on theories of light is well known, and is touched upon here. However, the acoustic figures described initially by Robert Hooke in 1665 and in more detail by Ernst Chladni in 1787 (often referred to as Chladni figures) were instrumental in vision in two specific res...
journal_title:Perception
pub_type: 历史文章,杂志文章
doi:10.1068/p5295
更新日期:2005-01-01 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
pub_type: 杂志文章
doi:10.1068/p170289
更新日期:1988-01-01 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
pub_type: 杂志文章
doi:10.1068/p150603
更新日期:1986-01-01 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
pub_type: 杂志文章
doi:10.1068/p210201
更新日期:1992-01-01 00:00:00
abstract::In four studies children were asked to read aloud a passage of randomly ordered common words with and without a coloured sheet of plastic (overlay) placed upon the page. The children's rate of reading increased with the overlay, for some children more than for others. The children were also asked to undertake a test o...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p2761
更新日期:1999-01-01 00:00:00
abstract::Embodied cognition and perceptual symbol theories assume that higher cognition interacts with and is grounded in perception and action. Recent experiments have shown that language processing interacts with perceptual processing in various ways, indicating that linguistic representations have a strong perceptual charac...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p7010
更新日期:2011-01-01 00:00:00
abstract::In four experiments we examined the nature of the information used in judging whether events would or would not give rise to a collision in the near future. Observers were tested in situations depicting approaches between two objects (lateral approaches) and approaches between an object and the point of observation (h...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p3433
更新日期:2003-01-01 00:00:00
abstract::The aim in the experiments was to examine whether the detection of structure-from-motion (SFM) in noise was facilitated when target and noise were segregated by colour and/or luminance polarity. The SFM target was a rotating 'V-shape' structure simulated with limited-lifetime Gaussian micropatterns and embedded in ran...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p270769
更新日期:1998-01-01 00:00:00
abstract::Most cognitive scientists know that an airplane tends to lose its engine when the display is flickering. How does such prior experience influence visual search? We recorded eye movements made by vision researchers while they were actively performing a change-detection task. In selected trials, we presented Rensink's f...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p5906
更新日期:2008-01-01 00:00:00
abstract::Attention is unequally distributed across the visual field. Due to greater right than left hemisphere activation for visuospatial attention, people attend slightly more to the left than the right side. As a result, people voluntarily remember visual stimuli better when it first appears in the left than the right visua...
journal_title:Perception
pub_type: 杂志文章
doi:10.1177/0301006620982210
更新日期:2021-01-01 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
pub_type: 杂志文章
doi:10.1177/0301006615616753
更新日期:2016-01-01 00:00:00
abstract::The travelling salesperson problem (TSP) provides a realistic and practical example of a visuo-spatial problem-solving task. In previous research, we have found that the quality of solutions produced by human participants for small TSPs compares well with solutions from a range of computer algorithms. We have proposed...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p2863
更新日期:1999-01-01 00:00:00
abstract::Perception relates not only to the optical information from the environment but also to the perceiver's performance on a given task. We present evidence that the perceived height and width of an American-football field goal post relates to the perceiver's kicking performance. Participants who made more successful kick...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p6325
更新日期:2009-01-01 00:00:00
abstract::Two experiments are reported with young Down's syndrome and normal children matched for mental age, sex, and social class. In one, Down's syndrome children performed at chance level on two tactual--visual cross-modal tasks, and only the oldest succeeded with one of two visual--visual within-modal tasks. The modal chil...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p110691
更新日期:1982-01-01 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
pub_type: 杂志文章
doi:10.1068/p3180
更新日期:2001-01-01 00:00:00
abstract::The perceptual salience and semantic relevance of objects for the meaning of a scene were evaluated with multiple criteria and then manipulated in a change-detection experiment that used an original combination of one-shot and tachistoscopic divided-visual-field paradigms to study behavioural hemispheric asymmetry. Co...
journal_title:Perception
pub_type: 杂志文章,随机对照试验
doi:10.1068/p6524
更新日期:2011-01-01 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
pub_type: 杂志文章
doi:10.1068/p6740
更新日期:2010-01-01 00:00:00
abstract::In the present study, participants searched for a conjunction of color and orientation either from the same part of an object (same-part display), or from different parts of an object (different-part display). While no difference was found between the two display conditions in single feature searches, conjunction sear...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p3431
更新日期:2002-01-01 00:00:00
abstract::Because of the massive amount of incoming visual information, perception is fundamentally selective. We are aware of only a small subset of our visual input at any given moment, and a great deal of activity can occur right in front of our eyes without reaching awareness. While previous work has shown that even salient...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p5341no
更新日期:2004-01-01 00:00:00
abstract::The Ternus display is a moving visual stimulus which elicits two very different percepts, according to the length of the interstimulus interval (ISI) between each frame of the motion sequence. These two percepts, referred to as element motion and group motion, have previously been analysed in terms of the operation of...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p3247
更新日期:2001-01-01 00:00:00
abstract::The tactile counterpart of diplopia has recently been described: tactile diplopia or diplesthesia. The human fingers show a rather precise organization of the cutaneous areas eliciting diplesthesia. In particular, these areas are very extensive between nonadjacent fingers (second and fourth, second and fifth, and thir...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p200687
更新日期:1991-01-01 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
pub_type: 杂志文章
doi:10.1177/0301006616683202
更新日期:2017-06-01 00:00:00
abstract::An experiment is reported in which the attribution of gender to isolated facial features and to faces whose features have been interchanged with those of a face of the opposite gender has been examined. Sixteen male faces were averaged to create a prototype male face and sixteen female faces averaged to create a proto...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p220829
更新日期:1993-01-01 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
pub_type: 杂志文章
doi:10.1068/p090285
更新日期:1980-01-01 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
pub_type: 杂志文章
doi:10.1068/p5427
更新日期:2005-01-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1068/p5949
更新日期:2008-01-01 00:00:00
abstract::Perception of intentions and dispositions of others is an essential ingredient of adaptive daily-life social behaviour. Dynamics of moving images leads to veridical perception of social attributes. Anecdotal observations in art, science, and popular culture indicate that dynamic imbalance can be revealed in static ima...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p5400
更新日期:2005-01-01 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
pub_type: 杂志文章
doi:10.1068/p5637
更新日期:2007-01-01 00:00:00
abstract::In a series of three experiments, observers judged the perceived relative depths of small probe dots, which could be presented in empty space or attached to a smoothly curved surface. Discriminations of ordinal depth were found to be more precise than discriminations of depth intervals. The amount of separation in the...
journal_title:Perception
pub_type: 杂志文章
doi:10.1068/p270257
更新日期:1998-01-01 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
pub_type: 杂志文章
doi:10.1068/p060571
更新日期:1977-01-01 00:00:00