Abstract：
:One primary function of spatial attention is to exclude external noise [e.g., Psychol. Sci. 11(2) (2000) 139], especially in the region of the target stimulus [J. Vis. 2(4) (2000) 312]. What is not known is the spatial profile of external noise exclusion in the vicinity of the target and how this depends upon attention. The spatial region around an oriented Gabor target was segmented into four concentric rings (R1-R4). Psychometric functions were measured for orientation discrimination with external random Gaussian noise in all combinations of rings (e.g., R1 alone; R1+R2; etc.). Regions with larger impact on performance are weighted more heavily in the perceptual template. In an orientation discrimination task in periphery the effective noise regions aligned closely with the high contrast regions of the target Gabor, with attention reducing the effective noise across the spatial template. The combined effects of external noise regions were well-modeled by a (non-linear) perceptual template model (PTM) [Vis. Res. 38(9) (1998) 1183]. In another experiment in attended fovea, the results were similar to those in periphery, but exhibited additional ability to selectively weight clear spatial regions.
journal_name
Vision Resjournal_title
Vision researchauthors
Dosher BA,Liu SH,Blair N,Lu ZLdoi
10.1016/j.visres.2004.01.011subject
Has Abstractpub_date
2004-06-01 00:00:00pages
1257-71issue
12eissn
0042-6989issn
1878-5646pii
S0042698904000306journal_volume
44pub_type
杂志文章相关文献
VISION RESEARCH文献大全abstract：:Small disparity stimuli applied to large random-dot patterns elicit machine-like vergence eye movements at short latency. We have examined the sensitivity of these eye movements to simulated orthogonal tropias in three normal subjects by recording (1) the effects of vertical disparities on the initial horizontal verge...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(02)00572-2
更新日期：2003-02-01 00:00:00
abstract：:We investigated the interactions between flicker thresholds and luminance pedestals using threshold versus contrast (TvC) and method of constant stimuli paradigms. High amplitude luminance pedestals were found to elevate flicker thresholds, but low amplitude luminance pedestals were unable to reduce flicker thresholds...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(00)00121-8
更新日期：2000-01-01 00:00:00
abstract：:We measured the spatial receptive field dimensions of cells in the lateral geniculate nucleus (LGN) of the common marmoset (Callithrix jacchus) using a bipartite field stimulus in which the two halves of the field were modulated identically but in counterphase. Horizontal and vertical edges between the two fields were...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(97)00041-2
更新日期：1997-08-01 00:00:00
abstract：:The activity of neurones in cat striate cortex in response to laterally moving sinusoidal gratings has been examined. The effect of prolonged visual stimulation with a high contrast moving grating stimulus of optimal orientation and spatial frequency was investigated in terms of the changes wrought in the relationship...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(83)90113-x
更新日期：1983-01-01 00:00:00
abstract：:The spectral properties of human color detection mechanisms were measured using a noise masking technique that minimizes the possibility of off-axis looking and artifactually narrow estimates of bandwidth. Observers were induced to use a single detection mechanism throughout a spectral bandwidth measurement by using s...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(97)00381-7
更新日期：1998-10-01 00:00:00
abstract：:In adult golden hamsters (Mesocricetus auratus), the optic nerve was bilaterally sectioned with one side grafted with the sciatic nerve to make a bridge to the ipsilateral superior colliculus. Shuttle-box avoidance was tested using light as the conditioned stimulus. Three of the five transplanted animals revealed stat...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(93)90070-d
更新日期：1993-05-01 00:00:00
abstract：:Previous studies have shown that a LATER (Linear Approach to Threshold with Ergodic Rate) race model can be used to explain saccadic target selection and latencies. The goal of the present study was to determine whether a comparable model could be applied to the underlying decision-making processes involved in target ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2004.09.034
更新日期：2005-03-01 00:00:00
abstract：:A successive asymmetric colour-matching task was used to study the changes in colour appearance of simulated Munsell samples. Colour shifts were induced with two Planckian illuminants, standard illuminant A (u'=0.256, v'=0.524) and illuminant S (u'=0.174, v'=0.392). Measurements were conducted with a 20 degrees field ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.03.011
更新日期：2006-10-01 00:00:00
abstract：:To study the L- and M-cone pathways and their interactions in patients with cone and cone-rod dystrophies, ERG responses were measured to stimuli which modulated exclusively the L- or the M-cones, or the two simultaneously. The L- and M-cone driven ERG amplitudes were considerably reduced in the patients. The mean pha...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(03)00411-5
更新日期：2003-10-01 00:00:00
abstract：:A series of multiple regression analyses was conducted on a corpus of eye movement data to examine whether the influence of properties of words n-1 and n+1 on the time spent fixating word n changes as a function of whether word n is associated with a punctuation mark (i.e., whether or not a punctuation mark separates ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.12.006
更新日期：2007-04-01 00:00:00
abstract：:It is now clear, contrary to previous conclusions, that motion may be conveyed by purely chromatic stimuli. The question considered here is how the mechanisms for assessing motion of luminance and chromatic stimuli differ. The dependence on contrast of amplitude thresholds for the perception of oscillatory motion was ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(99)00044-9
更新日期：1999-10-01 00:00:00
abstract：:Genetic analyses were performed on five male children (approximately 3 years), two suspect color-normals and three suspects for congenital color vision deficiencies. These classifications were based on visually-evoked potential (VEP) responses to M- and L-cone-isolating stimuli obtained in a previous study when each s...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(98)00067-4
更新日期：1998-11-01 00:00:00
abstract：:(1) We studied the influence of photoperiod and unilateral lid suture on post-natal ocular growth in two types of White Leghorn chicks previously reported to respond differently to visual deprivation, Truslow and Cornell K chicks. We analyzed the chicks after 2 weeks of rearing, a time period commonly used in neuropha...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(94)00232-b
更新日期：1995-05-01 00:00:00
abstract：:To achieve perceptual match between a flashed target and a gradually changing one, the flashed target should have the feature value corresponding to the value to be obtained by the gradually changing target only later. Flashed target should be positioned ahead of the continuously moving one in order to be perceived as...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(01)00003-7
更新日期：2001-04-01 00:00:00
abstract：:When an observer moves through the world, the motions of images on the retina provide information about the direction of observer motion, or "heading", and about the relative distance to surfaces in the scene. While it is simple to compute these quantities when the observer moves in a straight line, the computation be...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2007.08.008
更新日期：2007-11-01 00:00:00
abstract：:It has been shown that the perceived direction of a plaid with components of unequal contrast is biased towards the direction of the higher-contrast component [Stone, L. S., Watson, A. B., & Mulligan, J. B. (1990). Effect of contrast on the perceived direction of a moving plaid. Vision Research 30, 1049-1067]. It was ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.10.017
更新日期：2007-02-01 00:00:00
abstract：:The data made available by this experiment add two points to the information obtained by previous studies on eccentric vision and lateral masking. First, they demonstrate a clear effect of target-mask similarity on visual gap-resolution in eccentric vision: increasing target-mask similarity systematically decreases re...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(92)90192-l
更新日期：1992-04-01 00:00:00
abstract：:Luminance contrast discrimination was measured in 14 patients with retinitis pigmentosa (RP) and 14 control observers with normal vision, using steady-pedestal and pulsed-pedestal paradigms [Pokorny, J., & Smith, V. C. (1997). Psychophysical signatures associated with magnocellular and parvocellular pathway contrast g...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(00)00286-8
更新日期：2001-03-01 00:00:00
abstract：:Recent studies suggest that adaptation effects for face shape and gender transfer from upright to inverted faces more than the reverse. We investigated whether a similar asymmetry occurred for face identity, using a recently developed adaptation method based on contrast-recognition thresholds. When adapting and test s...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2009.06.012
更新日期：2009-09-01 00:00:00
abstract：:A change in the basic-level class when viewing a sequence of two objects produces a large release from adaptation in LOC compared to when the images are identical. Is this due to a change in semantics or shape? In an fMRI-adaptation experiment, subjects viewed a sequence of two objects and judged whether the stimuli w...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2009.06.020
更新日期：2009-09-01 00:00:00
abstract：:In two experiments we measured object recognition performance as a function of delay. In Experiment 1 we presented half of an image of an object, and then the other half after a variable delay. Objects were subdivided into top versus bottom halves, left versus right halves, or vertical strips. In Experiment 2 we separ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2005.01.009
更新日期：2005-06-01 00:00:00
abstract：:Western blot analysis of 100,000 g supernatant of rat retina using a polyclonal anti-Ca2+/ calmodulin-dependent protein kinase IV (CaM-kinase IV) antibody revealed an immunoreactive mass of 35 kDa, termed reticalmin. Lower amount of a isoform of CaM-kinase IV was also expressed in rat retina. Reticalmin did not react ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(97)00175-2
更新日期：1997-08-01 00:00:00
abstract：:Vestibulo-ocular reflex (VOR)-optokinetic reflex (OKR) interaction was studied in normal human subjects during active sine-like head movements in the horizontal plane for a variety of vestibular-optokinetic stimulus combinations (frequency range, 0.05-1.6 Hz). At low to mid frequencies (< 0.2 Hz) the eyes tended to be...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(96)00315-x
更新日期：1997-06-01 00:00:00
abstract：:The Bezold-Brücke phenomenon was measured during the cone-plateau period of the long-term dark-adaptation curve at 25 degrees, 40 degrees and 60 degrees in the nasal field of view, and at 40 degrees and 70 degrees in the temporal field. In striking contrast to previous measurements of the B-B phenomenon the present re...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(82)90018-9
更新日期：1982-01-01 00:00:00
abstract：:It is known that SPARC gates VEGF-A signal transduction towards KDR, the primary angiogenic VEGF receptor. We sought to determine whether inhibition of SPARC activity using anti-SPARC peptide could inhibit laser-induced CNV by promoting binding of VEGF-A to FLT-1. We created anti-SPARC l-peptide and retro-inverso anti...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2009.12.003
更新日期：2010-03-31 00:00:00
abstract：:While identified regions of human extrastriate visual cortex are functionally specialized for processing different attributes of an object, the cognitive and neural mechanisms by which these attributes are dynamically bound into integrated percepts are still largely mysterious. Here, we report that perceptual organiza...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2004.07.022
更新日期：2004-12-01 00:00:00
abstract：:In previous work, subjects looked at a target stabilized at the fovea, superimposed on a sinusiodally moving OKN stimulus. The stabilized target (no retinal-slip) suppressed OKN leaving residual eye movements that were often in counterphase with the OKN stimulus motion. In the present study we explored how this type o...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(95)00062-5
更新日期：1995-10-01 00:00:00
abstract：:In three experiments, the effects of irrelevant visual information on the time to initiate and to complete a simple movement of the hand in response to a visual signal were studied in patients with a diagnosis of Parkinson's disease, and in age-matched normal controls. Subjects gazed at the centre of a TV monitor and ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/S0042-6989(97)00188-0
更新日期：1997-12-01 00:00:00
abstract：:The gaze of another modulates and shifts an observer's spatial attention toward this gaze direction. This phenomenon is termed joint attention. Although previous studies found joint attention was induced during a spatial working memory task, it remains an open question whether spatial working memory interferes with jo...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2018.10.011
更新日期：2019-01-01 00:00:00
abstract：:A local region in an image is seen as slanted when the two eyes are shown different luminance values in that region. The steepness of the slant depends upon the size of the region and the difference in the luminance values in the two eyes. Three examples where this phenomenon influences depth perception are given: (1)...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(94)00114-2
更新日期：1995-01-01 00:00:00
