Abstract：
:The effects of abrupt increases and decreases of light in one part of the retina on sensitivity in an adjacent part of the retina were studied under low scotopic conditions near absolute threshold. The basic finding is that a brief annular surround decreases sensitivity to test spots occurring near the time of its onset or its offset, but that the surround increases sensitivity to test spots occurring the first few hundred milliseconds following its offset. If the annulus is presented in one eye and the test flash to the other, annulus onset reduces sensitivity, but annulus offset has almost no effect on thresholds in the contralateral eye. In fully dark-adapted observers, absolute sensitivity is somewhat greater when the test flashes are preceded by a flashed surround than when they are presented alone. These results challenge the idea that sensitivity to these stimuli is limited by an irreducible level of noise in the dark and under dim illumination.
journal_name
Vision Resjournal_title
Vision researchauthors
Pulos E,Makous Wdoi
10.1016/0042-6989(82)90024-4subject
Has Abstractpub_date
1982-01-01 00:00:00pages
879-87issue
8eissn
0042-6989issn
1878-5646pii
0042-6989(82)90024-4journal_volume
22pub_type
杂志文章相关文献
VISION RESEARCH文献大全abstract：:Nanosecond transient spectroscopic measurements of the BATHO products formed from photolysis of bovine rhodopsin (RHO) and isorhodopsin (ISO) are discussed. BATHO absorption spectra of RHO and ISO differ slightly, but both pigments exhibit wavelength maxima near 560 nm. An additional transient absorption at 440 nm is ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(84)90307-9
更新日期：1984-01-01 00:00:00
abstract：:The current study aims at analysing the suitability of the double-pass technique in measuring the accommodative response. A custom-built setup which allowed simultaneous double-pass and Hartmann-Shack measurements was used. Several metrics to assess the accommodative response were tested and compared. In order to vali...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2012.03.021
更新日期：2012-06-01 00:00:00
abstract：:To successfully navigate throughout the world, observers must rapidly recover depth information. One depth cue that is especially important for a moving observer is motion parallax. To perceive unambiguous depth from motion parallax, the visual system must integrate information from two different proximal signals, ret...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2017.05.016
更新日期：2017-11-01 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 determine whether speed discrimination improves when the retinal image is stabilized against the effects of eye movements, thresholds were measured under stabilized and normal viewing conditions. In the normal viewing conditions, eye movements were recorded and used to estimate retinal-image speeds. Stimulus refere...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(95)00270-7
更新日期：1996-06-01 00:00:00
abstract：:A system of regular, radial ridges, spaced approx. 250 nm apart, is reported from the outer corneal surface of the eye of the tiny moth Leucoptera coffeella. Antireflective coatings in larger insects with flatter facets often take the form of corneal nipples. However, evidence is presented that in an insect whose eyes...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(93)90223-j
更新日期：1993-12-01 00:00:00
abstract：:The ability to rapidly and accurately recognize visual stimuli represents a significant computational challenge. Yet, despite such complexity, the primate brain manages this task effortlessly. How it does so remains largely a mystery. The study of visual perception and object recognition was once limited to investigat...
journal_title：Vision research
pub_type： 杂志文章,评审
doi：10.1016/j.visres.2010.10.002
更新日期：2011-04-13 00:00:00
abstract：:The mechanisms underlying the parsing of a spatial distribution of velocity vectors into two adjacent (spatially segregated) or overlapping (transparent) motion surfaces were examined using random dot kinematograms. Parsing might occur using either of two principles. Surfaces might be defined on the basis of similarit...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(00)00013-4
更新日期：2000-01-01 00:00:00
abstract：:Inhibition-of-return is the process by which visual search for an object positioned among others is biased toward novel rather than previously inspected items. It is thought to occur automatically and to increase search efficiency. We examined this phenomenon by studying the facilitative and inhibitory effects of loca...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(00)00085-7
更新日期：2000-01-01 00:00:00
abstract：:We investigated temporal summation of the rods in a complete achromat, who lacks cone vision. Critical duration (tc) was estimated both at the achromat's preferred area of fixation and at an area 12 deg laterally in the nasal visual field. Comparable tc determinations were made in a normal trichromat. At background lu...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(88)90042-9
更新日期：1988-01-01 00:00:00
abstract：:Diabetic retinopathy (DR) is the progressive degeneration of retinal blood vessels and neurons. Inflammation is known to play an important role in the pathogenesis of DR. During diabetes, metabolic disorder leads to the release of damage-associated molecular patterns (DAMPs) both in the retina and elsewhere in the bod...
journal_title：Vision research
pub_type： 杂志文章,评审
doi：10.1016/j.visres.2017.04.013
更新日期：2017-10-01 00:00:00
abstract：:Though the human eye generally creates a single image on the retina, the literature contains many examples showing perceptual monocular diplopia. Previously, monocular diplopia resulting from astigmatic defocus has been demonstrated to cause a notch (local minimum) in the contrast sensitivity function (CSF). We examin...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(96)00091-0
更新日期：1996-11-01 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：:Field spectral sensitivities of the pattern-elicited electroretinogram (PERG) were obtained from two subjects using a modified version of Stiles' two-color increment threshold procedure. A 540 nm checkerboard test pattern of 38 degrees dia was alternated at 8 Hz on a uniform adapting field of the same size. Test inten...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(92)90064-p
更新日期：1992-11-01 00:00:00
abstract：:Static visual stimulus presented behind a moving pattern inhibits vection. On the other hand, the same static stimulus facilitates vection if it is located in front of the moving pattern. In this study, the effects of depth, eccentricity and size of the additional static stimulus on inhibition and facilitation of hori...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.01.016
更新日期：2006-07-01 00:00:00
abstract：:In this work, optical retardation (OR) was investigated in corneal stroma collagen fibers from nonobese diabetic (NOD) and healthy (BALB/c) mice. Linear dichroism (LD) was investigated in corneas stained with Ponceau SS and Toluidine Blue, using microspectrophotometer. NOD corneas showed higher OR values than the cont...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2007.02.011
更新日期：2007-12-01 00:00:00
abstract：:A photic stimulus flashed just before a saccade in the dark tends to be mislocalized in the direction of the saccade. This mislocalization is not only perceptual; it is also expressed by errors of ocular targeting. A particular situation arises if the point of light is flashed twice at the same place, the second time,...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(95)00021-q
更新日期：1995-08-01 00:00:00
abstract：:A visual transient due to a sudden visual change is generally considered to draw our attention to a location of interest. In a series of experiments we investigated how visual transients facilitate change detection in a scene. In line with earlier reports, we found that a transient sensation has its roots in a tempora...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2004.04.005
更新日期：2004-01-01 00:00:00
abstract：:An analytical description of the point spread function (PSF) for human foveal vision, together with its closed form two-dimensional Fourier transform, the modulation transfer function (MTF), is proposed. It also possesses an analytical line spread function (LSF) counterpart. It fits to both PSF and MTF experimental da...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(93)90053-y
更新日期：1993-01-01 00:00:00
abstract：:Although pictorial illusions have been used to study perception for a long time, the effects of such displays on the visual control of actions has recently been the matter of some debate. Evidence from a re-analysis of an earlier study is presented that suggests pictorial displays can exert opposite effects on percept...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(00)00056-0
更新日期：2000-01-01 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 Westheimer -like function has been obtained for simple reaction time (RT) to target luminance increments superimposed upon homogeneous background fields. RT to a constant-luminance target progressively increases as the outer diameter of a constant-luminance background is increased up to approximately 6'-8'. Further ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(84)90053-1
更新日期：1984-01-01 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：:Motion aftereffects are normally tested in regions of the visual field that have been directly exposed to motion (local or concrete MAEs). We compared concrete MAEs with remote or phantom MAEs, in which motion is perceived in regions not previously adapted to motion. Our aim was to study the spatial dependencies and s...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2004.04.001
更新日期：2004-01-01 00:00:00
abstract：:Superfusion with 200 microM 2-amino-4-phosphonobutyrate (APB) of dark and chromatically adapted frog eyecups caused marked potentiation of the ERG OFF-response (d-wave). Blockade of the glycinergic synapses by strychnine did not change this effect at all. Blockade of the GABAergic synapses by picrotoxin slightly dimin...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(94)00310-i
更新日期：1995-07-01 00:00:00
abstract：:What are the visual causes, rather than mere correlates, of attentional selection and how do they compare to each other during natural vision? To address these questions, we first strung together semantically unrelated dynamic scenes into MTV-style video clips, and performed eye tracking experiments with human observe...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.08.019
更新日期：2006-12-01 00:00:00
abstract：:Saccade latencies are known to increase for targets presented close to fixation. Recently, it was shown that not only target eccentricity, but the size of a proximal saccade target also plays a crucial role: latencies increase rapidly with increasing target size. Interestingly, these latency increases are greater than...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2016.09.006
更新日期：2016-12-01 00:00:00
abstract：:Recent evidence points to the importance of global operations across spatial regions larger than individual cortical receptive fields. Studies of contour integration and motion trajectory detection suggest that network operations between local detectors underlie the encoding of extended contours in space and extended ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(00)00183-8
更新日期：2000-01-01 00:00:00
abstract：:Unit responses susceptible to light stimulation of a small area on the frog's head were recorded in the deep encephalon of blinded specimens of Rana esculenta. The responses consisted of a spike discharge upon illumination. Using a threshold criterion the dark adaptation curves showed two parts, separated by a kink, t...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(82)90016-5
更新日期：1982-01-01 00:00:00
abstract：:Edge integration refers to a hypothetical process by which the visual system combines information about the local contrast, or luminance ratios, at luminance borders within an image to compute a scale of relative reflectances for the regions between the borders. The results of three achromatic color matching experimen...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2003.12.004
更新日期：2004-05-01 00:00:00
