Acetylcholinesterase and choline acetyltransferase localization patterns do correspond in cat and rat retinas.

abstract：:Retinal motion can modulate visual sensitivity. For instance, low contrast drifting waveforms (targets) can be easier to detect when abutting the leading edges of movement in adjacent high contrast waveforms (inducers), rather than the trailing edges. This target-inducer interaction is contingent on the adjacent wavef...

journal_title：Vision research

authors： Arnold DH,Marinovic W,Whitney D

更新日期：2014-05-01 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

authors： Kanai R,Verstraten FA

更新日期：2004-01-01 00:00:00

abstract：:A dysfunction of dopaminergic retinal neurons is thought to occur in Parkinson's disease, manifesting itself in impaired performance on various visual discrimination tasks. We have investigated whether differences in colour discrimination could readily be detected between a normal group and a Parkinsonian group, using...

journal_title：Vision research

authors： Regan BC,Freudenthaler N,Kolle R,Mollon JD,Paulus W

更新日期：1998-11-01 00:00:00

abstract：:A coordinated movement of the eyes and head in the head-unrestrained condition is often used to change orientation between targets. Under natural conditions, these gaze shifts are typically generated with the eyes roughly centered in the orbits. To achieve experimental control of eye and head positions, a miniature la...

journal_title：Vision research

authors： Gandhi NJ,Sparks DL

更新日期：2001-01-01 00:00:00

abstract：:The crystalline lens of the vertebrate eye grows throughout life. This growth may be enormous in fish, while the lens must be functional from larva to adult. During growth, the fiber cells of the lens must increase the concentration of specific proteins (crystallins) in the cytoplasm to increase refractive index. Howe...

journal_title：Vision research

authors： Kozłowski TM,Kröger RHH

更新日期：2019-09-01 00:00:00

abstract：:Models based on spatial-frequency channels and local features provide alternative explanations for suprathreshold pattern discrimination. We compared psychophysical discrimination data with the predictions of the Wilson and Gelb channel model and three local-feature models. The features were peak-valley local contrast...

journal_title：Vision research

authors： Akutsu H,Legge GE

更新日期：1995-10-01 00:00:00

abstract：:As a mechanism to detect differential motion, we have proposed a model of 'a motion contrast detector' and have shown that it can explain the perceptual change from motion capture to induced motion with increasing stimulus size and decreasing eccentricity. To further test the feasibility of the model, we examined the ...

journal_title：Vision research

authors： Murakami I,Shimojo S

更新日期：1995-07-01 00:00:00

abstract：:A retinal-binding protein (RALBP) was isolated from the squid retina, and purified by anion-exchange and size-exclusion chromatography. The molecular weight was determined to be 51,000 by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and by gel filtration. The purified sample showed absorption maxima at ab...

journal_title：Vision research

authors： Ozaki K,Terakita A,Hara R,Hara T

更新日期：1987-01-01 00:00:00

abstract：:Feature-directed attention has been recently studied in various psychophysical, electrophysiological, and imaging studies. Convincing evidence has been obtained for its global effectiveness, but there is a debate about the processing fate of non-attended target features. A number of studies demonstrated feature-direct...

journal_title：Vision research

authors： Wegener D,Ehn F,Aurich MK,Galashan FO,Kreiter AK

更新日期：2008-12-01 00:00:00

abstract：:When a horizontal bar is presented after a single dot is shown at one of its ends, an illusory motion is seen which has been dubbed "motion induction" in the literature. The phenomenon has been attributed to a facilitation process which asymmetrically modulates the inputs to motion detectors, for instance by some sort...

journal_title：Vision research

authors： Zanker JM

更新日期：1997-07-01 00:00:00

abstract：:Three experiments examined the effects of using informative verbal and pictorial cues on participants' abilities to perform visual search. By providing participants with more time to encode the cues than had been used previously, all three experiments revealed long-lasting pictorially cued search advantages that stabi...

journal_title：Vision research

authors： Knapp WH 3rd,Abrams RA

更新日期：2012-10-15 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

authors： Wilson A

更新日期：1984-01-01 00:00:00

abstract：:The selectivities of neurons in primary visual cortex are often considered to be adapted to the statistics of natural images. Accordingly, simple cell-like tuning emerges when unsupervised learning models that seek sparse representations of input probabilities are trained on natural scenes. However, orientation tuning...

journal_title：Vision research

authors： Hsu AS,Dayan P

更新日期：2007-10-01 00:00:00

abstract：:Colored afterimages were obtained after the eye was exposed to the adapting field consisting of the figure-ground configuration of colored lights with the same hue and different saturation. When a colored patch was surrounded by a more saturated field, the color of the afterimage was similar to that of the previous pa...

journal_title：Vision research

authors： Takahashi S,Ejima Y,Akita M

更新日期：1988-01-01 00:00:00

abstract：:When participants can temporally prepare for a visual target stimulus, responses to this stimulus are faster and more accurate. Recent accounts attribute these effects either to an earlier accumulation of stimulus information or to an increased rate of information sampling. The present study examines whether temporal ...

journal_title：Vision research

authors： Bausenhart KM,Rolke B,Seibold VC,Ulrich R

更新日期：2010-06-01 00:00:00

abstract：:The color vision of five saddle-backed tamarins (Saguinus fuscicollis) was studied. Behavioral tests of color discrimination and spectral sensitivity indicate that this species has a color vision polymorphism. Individual monkeys have either dichromatic or trichromatic color vision. Measurements of the spectral sensiti...

journal_title：Vision research

authors： Jacobs GH,Neitz J,Crognale M

更新日期：1987-01-01 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

authors： Wong VA,Graham SL

更新日期：1995-10-01 00:00:00

abstract：:Subjects observed a random dot pattern that moved horizontally with modulated velocity within an invisible aperture. The velocity contrast, (V2-V1)/V1, was 2/3. Two different percepts occurred while observing this stimulus. At lower modulation frequencies, between 2 and 12 Hz, velocity changes were clearly seen; this ...

journal_title：Vision research

authors： Mateeff S,Hohnsbein J

更新日期：1996-09-01 00:00:00

abstract：:A highly debated question in attention research is to what extent attention is biased by bottom-up factors such as saliency versus top-down factors as governed by the task. Visual search experiments in which participants are briefly familiarized with the task and then see a novel stimulus unannounced and for the first...

journal_title：Vision research

authors： Ernst D,Becker S,Horstmann G

更新日期：2020-03-01 00:00:00

abstract：:Vernier thresholds were measured behaviourally in five cats using offsets in gratings of two spatial frequencies and in single lines. Thresholds ranged from 2.2 to 6.7', and no threshold differences were found across stimuli. These results are discussed in relationships with published spatial resolution data and are r...

journal_title：Vision research

authors： Belleville S,Wilkinson F

更新日期：1986-01-01 00:00:00

abstract：:Recently, psychophysical studies have shown that humans with amblyopia do have binocular function that is not normally revealed due to dominant suppressive interactions under normal viewing conditions. Here we use magnetoencephalography (MEG) combined with dichoptic visual stimulation to investigate the underlying bin...

journal_title：Vision research

authors： Chadnova E,Reynaud A,Clavagnier S,Hess RF

更新日期：2017-11-01 00:00:00

abstract：:Prior work suggests that internal features contribute more than external features to face processing. Whether this asymmetry is also true of the mental representations of faces is not known. We used face adaptation to determine whether the internal and external features of faces contribute differently to the represent...

journal_title：Vision research

authors： Hills C,Romano K,Davies-Thompson J,Barton JJ

更新日期：2014-07-01 00:00:00

abstract：:Several studies have found that individuals from small hometowns show diminished face recognition ability as compared with individuals from larger hometowns. We further this line of research by relating six measures of face recognition ability to hometown density. We predicted that the three face recognition ability m...

journal_title：Vision research

authors： Sunday MA,Patel PA,Dodd MD,Gauthier I

更新日期：2019-10-01 00:00:00

abstract：:In Experiments 1-3, we monitored search performance as a function of target eccentricity under display durations that either allowed or precluded eye movements. The display was present either until observers responded, for 104 msec, or for 62 msec. In all three experiments an orientation asymmetry emerged: observers d...

journal_title：Vision research

authors： Carrasco M,McLean TL,Katz SM,Frieder KS

更新日期：1998-02-01 00:00:00

abstract：:We demonstrate a new type of interaction between suprathreshold colour (chromatic) and luminance contrast in the context of binocular, specifically dichoptic vision. A highly saturated isoluminant violet 'mask' disk in one eye greatly elevates detection thresholds for an isoluminant violet 'test' disk in the other eye...

journal_title：Vision research

authors： Kingdom FA,Wang D

更新日期：2015-11-01 00:00:00

abstract：:Researchers have investigated whether attentional capture during visual search is driven by top-down processes, i.e. experimental goals and directives, or by bottom-up processes, i.e. the properties of the items within a search display. Some research has demonstrated that subjects cannot avoid attending to a task-irre...

journal_title：Vision research

authors： Berry JH

更新日期：2013-03-22 00:00:00

abstract：:In most visual search experiments in the laboratory, objects are presented on an isolated, blank background. In most real world search tasks, however, the background is continuous and can be complex. In six experiments, we examine the ability of the visual system to separate search items from a background. The results...

journal_title：Vision research

authors： Wolfe JM,Oliva A,Horowitz TS,Butcher SJ,Bompas A

更新日期：2002-12-01 00:00:00

abstract：:Reading in peripheral vision is slow and requires large print, posing substantial difficulty for patients with central scotomata. The purpose of this study was to evaluate the effect of print size on reading speed at different eccentricities in normal peripheral vision. We hypothesized that reading speeds should remai...

journal_title：Vision research

authors： Chung ST,Mansfield JS,Legge GE

更新日期：1998-10-01 00:00:00

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

authors： Kliger DS,Horwitz JS,Lewis JW,Einterz CM

更新日期：1984-01-01 00:00:00

abstract：:To investigate the sources of spatial error in memory-guided saccades (MGS), we have trained monkeys on two different tasks: a MGS task and a delayed spatial match-to-sample (MTS) task. We first tested the effect of introducing a post-saccadic visual feedback on the accuracy of MGS. We found that visual feedback had a...

journal_title：Vision research

authors： Opris I,Barborica A,Ferrera VP

更新日期：2003-02-01 00:00:00