Abstract:
:Wilson and Humanski (1993) have recently reported evidence that adapting to low temporal frequency sinewave gratings yields little threshold elevation for briefly presented test stimuli. We postulated that brief stimuli may be detected by a transient channel which would be minimally affected by a low temporal frequency adapting pattern. We therefore measured the effect of adaptation on briefly presented test stimuli for a wider range of adapting temporal frequencies. The results indicate that adaptation may yield threshold elevation for briefly presented stimuli and that threshold elevation is greater for high than low temporal frequency adapting patterns. These results are consistent with the hypothesis that briefly presented stimuli are detected by a transient channel.
journal_name
Vision Resjournal_title
Vision researchauthors
Hammett ST,Snowden RJdoi
10.1016/0042-6989(94)00283-rsubject
Has Abstractpub_date
1995-06-01 00:00:00pages
1721-5issue
12eissn
0042-6989issn
1878-5646pii
0042-6989(94)00283-Rjournal_volume
35pub_type
杂志文章相关文献
VISION RESEARCH文献大全abstract::Studies of spatial summation often use sinusoidal gratings with blurred edges. When the envelope is elongated (i) along the grating stripes and (ii) at right angles to the grating stripes, we refer to the stimuli as skunk-tails and tiger-tails respectively. Previous work [Polat & Tyler, 1999; Vision Research, 39, 887-...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2007.04.008
更新日期:2007-06-01 00:00:00
abstract::A long-wavelength background can affect the appearance of an increment of light superimposed upon it in two ways. It can change the visual system's sensitivity to the increment, and it can change the appearance of the increment by directly adding redness to it. Through selective retinal-image stabilization, we evoked ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(93)90155-p
更新日期:1993-01-01 00:00:00
abstract::We investigated the effect of adaptation on orientation discrimination using two experienced observers, then replicated the main effects using a total of 50 naïve subjects. Orientation discrimination around vertical improved after adaptation to either horizontal or vertical gratings, but was impaired by adaptation at ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(00)00248-0
更新日期:2001-01-15 00:00:00
abstract::A dichoptic display in which the images are cyclorotated in opposite directions does not appear inclined. This suggests that perceived inclination depends on the difference between horizontal-shear and vertical-shear disparity. Large random-dot stereoscopic displays were presented with various types of shear disparity...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(94)90237-2
更新日期:1994-10-01 00:00:00
abstract::The apparent speed of plaids made up of two gratings having the same spatial frequency and the same speed was evaluated (symmetrical type I). The plaids were moving vertically as defined by the intersection-of-constraints (IOC) rule with a mean duration of 300 msec. The comparison-stimulus was a horizontal line moving...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(95)00092-e
更新日期:1996-01-01 00:00:00
abstract::While it is known that scleral search coils-measuring the rotation of the eye globe--and modern, video based eye trackers-tracking the center of the pupil and the corneal reflection (CR)--produce signals with different properties, the mechanisms behind the differences are less investigated. We measure how the size of ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2016.01.009
更新日期:2016-04-01 00:00:00
abstract::Recent work suggests that dichoptic lateral interactions occur in the region of the visual field of one eye that corresponds to the physiological blind spot in the other eye (Tripathy, S. P., & Levi, D. M. (1994). The two-dimensional shape of spatial interaction zones in the parafovea. Vision Research, 34, 1127-1138.)...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(98)00230-2
更新日期:1999-06-01 00:00:00
abstract::Several studies have shown that the perceived position of a briefly presented stimulus can be displaced by nearby motion or by eye movements. We examined whether attentive tracking can also modulate the perceived position of flashed static objects when eye movements and low-level motion are controlled. Observers atten...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2005.05.029
更新日期:2005-11-01 00:00:00
abstract::Electrophysiological recording and microspectrophotometry were used to analyze retinal function in representatives of the two surviving genera of holostean grade fish--the bowfin (Amia calva) and gars (Lepisosteus sp.). The properties of the cone photopigments, horizontal cells and ganglion cells show that these holos...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(83)90014-7
更新日期:1983-01-01 00:00:00
abstract::Studying color preferences provides a means to discover how perceptual experiences map onto cognitive and affective judgments. A challenge is finding a parsimonious way to describe and predict patterns of color preferences, which are complex with rich individual differences. One approach has been to model color prefer...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2017.07.001
更新日期:2018-10-01 00:00:00
abstract::Effects of optical correction on best-corrected grating acuity (vertical (V), horizontal (H), oblique (O)), vernier acuity (V, H, O), contrast sensitivity (1.5, 6.0, and 18.0 cy/deg spatial frequency, V and H), and stereoacuity were evaluated prospectively in 4- to 13-year-old astigmats and a non-astigmatic age-matche...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2007.12.007
更新日期:2008-03-01 00:00:00
abstract::Three experiments of visual search for a cube (for a square pillar in Experiment 3) with an odd conjunction of orientation of faces and color (a cube with a red top face and a green right face among cubes with a green top face and a red right face, for example) showed that the search is made more efficient by arrangin...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(03)00300-6
更新日期:2003-08-01 00:00:00
abstract::We report on the ability of human observers to discriminate local second-order shape of quadratic stereo-defined surfaces. Local second-order shape can be specified by two parameters: the curvedness (a scale-dependent quantity describing overall curvature of a shape) and the shape index (a scale-independent quantity d...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(94)90285-2
更新日期:1994-09-01 00:00:00
abstract::We have used DOG stimuli to selectively stimulate size tuned channels within the visual system in order to investigate the relationship between stereo and vernier acuity. We measured these acuities as a function of spatial frequency, retinal eccentricity and distance from the fixation point in depth. Both hyperacuitie...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(85)90100-2
更新日期:1985-01-01 00:00:00
abstract::We measured the points of subjective equality of velocity for dynamic unidirectionally moving random-dot patterns with different amounts of transiency. The transiency was changed by varying the time a dot would move before being randomly replotted within the stimulus. The perceived velocity of patterns moving at inter...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(93)90198-6
更新日期:1993-03-01 00:00:00
abstract::The wave-front aberration of the human eye was measured for eight subjects using a spatially resolved refractometer (a psychophysical ray-tracing test). The eyes were undilated and presented with accommodative stimuli varying from 0 to -6 diopters. Monochromatic wave-front aberrations tend to increase with increasing ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(99)00156-x
更新日期:2000-01-01 00:00:00
abstract::Qualitative defects and resistances in 94 used gold foil electrodes were examined. The electrodes were divided into four groups of varying resistances and gold coating defects. Ten were randomly selected from each group to measure standard photopic electroretinograms (ERGs) in a normal subject. Ten new electrodes were...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(95)00046-3
更新日期:1995-10-01 00:00:00
abstract::We investigated the patterns of two-dimensional spatial distortions in human amblyopia, using three different psychophysical mapping procedures. Strabismic and strabismic-anisometropic amblyopes showed consistent distortions, consisting in enlargement, shrinkage, or torsion of portions of the tested visual field. Pure...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2008.01.028
更新日期:2008-04-01 00:00:00
abstract::Previous experiments testing grating and vernier acuities in albino central vision are consistent with the hypothesis that the deficit in their monocular spatial processing is mainly due to the increased spacing of their foveal cones. This was tested by measuring albino spatial frequency discrimination over the range ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(89)90138-7
更新日期:1989-01-01 00:00:00
abstract::Saccadic and manual responses were used to investigate the speed of discrimination between happy and non-happy facial expressions in two-alternative-forced-choice tasks. The minimum latencies of correct saccadic responses indicated that the earliest time point at which discrimination occurred ranged between 200 and 28...
journal_title:Vision research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.visres.2011.06.001
更新日期:2011-08-01 00:00:00
abstract::A two-frequency two-response paradigm was employed. The stimulus on any trial was a compound grating containing two sinusoidal components of different spatial frequencies where the contrast in one or both components could be zero. The observer gave two responses each indicating confidence that one of the two component...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(82)90152-3
更新日期:1982-01-01 00:00:00
abstract::Observers can better discriminate orientation or direction near the cardinal axes than near an oblique axis. We investigated whether this well-known oblique effect is determined by the physical or the perceived axis of the stimuli. Using the simultaneous tilt illusion, we generated perceptually different orientations ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2005.05.016
更新日期:2005-12-01 00:00:00
abstract::To pursue a small target moving in front of a drifting background, motion vectors from the target need to be integrated and segmented from those belonging to the background. Smooth pursuit eye movements typically integrate target and background directions initially and after some time shift towards the veridical targe...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2012.02.001
更新日期:2012-03-15 00:00:00
abstract::We have examined the ability of observers to parse bimodal local-motion distributions into two global motion surfaces, either overlapping (yielding transparent motion) or spatially segregated (yielding a motion boundary). The stimuli were random dot kinematograms in which the direction of motion of each dot was drawn ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(98)00168-0
更新日期:1999-03-01 00:00:00
abstract::Horizontal pursuit eye movements were investigated in two separate groups of children: One group exhibited developmental co-ordination disorder (n = 8) whilst another group of children were born prematurely (n = 8). Both studies found a reduced gain in pursuit eye movements when the respective populations were compare...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(97)00399-4
更新日期:1998-06-01 00:00:00
abstract::When each eye is confronted with a dissimilar stimulus, the percept will generally alternate between the two. This phenomenon is known as binocular rivalry. Although binocular rivalry occurs at locations where targets overlap spatially, the area surrounding rivalrous targets can modulate their dominance. Here we show ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2004.02.007
更新日期:2004-01-01 00:00:00
abstract::Spatio-temporal boundary formation (SBF) refers to a perceptual process responsible for perception of moving, bounded surfaces from sequential changes in spatially separated local elements. Previous research has indicated that this process produces perception of global form, continuous boundaries and global motion fro...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(96)00272-6
更新日期:1997-05-01 00:00:00
abstract::Neural degeneration in glaucoma involves retinal ganglion cells and neurons of their major target, the lateral geniculate nucleus (LGN). Dendrites of relay LGN neurons projecting to the visual cortex were studied by immunocytochemical and quantitative Sholl analysis in combination with confocal microscopy and 3D-morph...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2010.08.003
更新日期:2011-01-28 00:00:00
abstract::We study the "color weight" for a number of rather different paradigms. In well researched heterochromatic photometry methods we find that the "weights" determined by settings of naive observers are closely determined by the CIE luminance functional. This is very different for tasks that involve mid- and high-level as...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2017.06.006
更新日期:2018-10-01 00:00:00
abstract::With the use of the simple motor reaction time (RT), we examined the contribution of the hemiretinas to the timing of the pattern reversal visual evoked potential (PVEP). RTs were obtained to the reversal of a progressively dimmer check falling either on the central, nasal, temporal, superior or inferior retina. Resul...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(97)00117-x
更新日期:1997-11-01 00:00:00