Influence of surface attitude and curvature scaling on discrimination of binocularly presented curved surfaces.

abstract：:There is controversy regarding whether or not involuntary attention improves response accuracy at a cued location when the cue is non-predictive and if these cueing effects are dependent on backward masking. Various perceptual and decisional mechanisms of performance enhancement have been proposed, such as signal enha...

journal_title：Vision research

authors： Pack W,Carney T,Klein SA

更新日期：2013-08-30 00:00:00

abstract：:Random-dot cinematograms comprising many different, spatially intermingled local motion vectors can produce a percept of global coherent motion in a single direction. Thresholds for discriminating the direction of global motion were measured under various conditions. Discrimination thresholds increased with the width ...

journal_title：Vision research

authors： Watamaniuk SN,Sekuler R

更新日期：1992-12-01 00:00:00

abstract：:This study examined the manner in which the On and Off systems originating in the retina make their connections with the lateral geniculate nucleus (LGN) of the rhesus monkey. 2-amino-4-phosphonobutyric acid (APB) was either infused or injected into the vitreous chamber of the eye to block the On channel while the res...

journal_title：Vision research

authors： Schiller PH

更新日期：1984-01-01 00:00:00

abstract：:Contrast detection performance is known to be better for single component sinusoidal gratings than for sums of gratings at different orientations. A recent study Rovamo et al. (1994) (Investigative Ophthalmology and Visual Science, 35, 2611-2619) showed that spatial integration is less effective for multiple orientati...

journal_title：Vision research

authors： Näsänen R,Syväjärvi A,Rovamo J

更新日期：1997-04-01 00:00:00

abstract：:Phosphatase enzymes cleave an inorganic phosphate from a substrate. Phosphatase enzyme histochemistry followed by flat-embedding in glycol methacrylate is extremely useful in studying retinal and choroidal vascular development and loss, since only viable blood vessels have these enzyme activities. Sites of occlusion a...

journal_title：Vision research

authors： Lutty GA,McLeod DS

更新日期：2005-12-01 00:00:00

abstract：:We have recorded the activity of omnipause neurons (OPNs) in the raphe interpositus during so-called staircase saccades produced by prolonged activation of the superior colliculus (SC) by microstimulation. By showing that OPNs cyclically pause during the periodic movements produced by the steady activation function, w...

journal_title：Vision research

authors： Paul K,Gnadt JW

更新日期：2006-10-01 00:00:00

abstract：:It is possible to discriminate between grating contrasts over a 300-fold contrast range, whereas V1 neurons have very limited dynamic ranges. Using populations of model neurons with contrast-response parameters taken from electrophysiological studies (cat and macaque), we investigated ways of combining responses to co...

journal_title：Vision research

authors： Clatworthy PL,Chirimuuta M,Lauritzen JS,Tolhurst DJ

更新日期：2003-08-01 00:00:00

abstract：:The absorption of a photon by a photoreceptor triggers a small voltage fluctuation termed the 'bump'. Here, in the housefly, I introduce the bispectrum of photoreceptor noise to characterise the bump under dim light. The bispectrum provides explicit phase information and is not contaminated by Gaussian background nois...

journal_title：Vision research

authors： Burton BG

更新日期：2006-03-01 00:00:00

abstract：:The regularities in very young infants' visual worlds likely have out-sized effects on the development of the visual system because they comprise the first-in experience that tunes, maintains, and specifies the neural substrate from low-level to higher-level representations and therefore constitute the starting point ...

journal_title：Vision research

authors： Jayaraman S,Smith LB

更新日期：2019-04-01 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：:When a colour/orientation conjunction search display is immediately preceded by a display that shows either the colour or the orientation of each upcoming search item, search is faster after colour-preview than after orientation-preview. One explanation for this feature asymmetry is that colour has priority access to ...

journal_title：Vision research

authors： Olds ES,Graham TJ,Jones JA

更新日期：2009-05-01 00:00:00

abstract：:DL-2-amino-4-phosphonobutyric acid (APB) reduces the sensitivity of ON- and OFF-responses in goldfish retina, although the ON-responses are reduced significantly more than the OFF-responses. This paper describes the effects of APB on behavioral sensitivity of goldfish to spatial sinusoidal gratings. Fish were classica...

journal_title：Vision research

authors： Bilotta J,Demarco PJ Jr,Powers MK

更新日期：1995-01-01 00:00:00

abstract：:As impaired S-cone function has been reported psychophysically this study assessed S-cone function during high altitude exposure using electroretinography (ERG) and investigated a possible association with severity of acute mountain sickness (AMS). This work is related to the Tübingen High Altitude Ophthalmology (THAO...

journal_title：Vision research

authors： Schatz A,Dominik Fischer M,Schommer K,Zrenner E,Bartz-Schmidt KU,Gekeler F,Willmann G

更新日期：2014-04-01 00:00:00

abstract：:The present study examined perceptual distortions of a vertical line before and after macular hole (MH) surgery in 25 eyes of 24 patients. Participants' perceptual reports of distortions were classified as solid, bent right/left, thinned at the center, or broken. The majority of patients (72%) reported symmetrical dis...

journal_title：Vision research

authors： Wittich W,Overbury O,Kapusta MA,Watanabe DH,Faubert J

更新日期：2006-11-01 00:00:00

abstract：:Vergence angle and accommodative state were assessed photographically in 3-, 6-, and 12-month old infants. In the dark, fluctuations of vergence and accommodation were generally uncorrelated among all groups. The vergence-accommodation functions obtained in the dark had a mean slope of 0.04. These findings provide evi...

journal_title：Vision research

authors： Aslin RN,Dobson V

更新日期：1983-01-01 00:00:00

abstract：:Shape primitives have long been proposed as components for object models in the visual system, and account for a considerable body of behavioral findings. While a large amount of effort has been devoted to the study of detection of these parts in the scenes, no research has been undertaken simulating the acquisition o...

journal_title：Vision research

authors： Shams L,von der Malsburg C

更新日期：2002-08-01 00:00:00

abstract：:Electrophysiological studies have established that lead exposure produces selective rod deficits. The present electroretinographic (ERG) and correlated calcium experiments examined whether low-level or moderate-level developmental lead exposure (peak blood lead of 19 and 59 micrograms/dl, respectively) altered dark ad...

journal_title：Vision research

authors： Fox DA,Katz LM

更新日期：1992-02-01 00:00:00

abstract：:Mach bands are illusory bright and dark bands seen where a luminance plateau meets a ramp, as in half-shadows or penumbras. A tremendous amount of work has been devoted to studying the psychophysics and the potential underlying neural circuitry concerning this phenomenon. A number of theoretical models also have been ...

journal_title：Vision research

authors： Pessoa L

更新日期：1996-10-01 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：:It has been known for some time that visual acuity in amblyopia is higher for single letters than for letters in a row (termed crowding). Early work showed that this could not be accounted for on the basis of the destructive interaction of adjacent contours (termed contour interaction), which was shown to be, in resol...

journal_title：Vision research

authors： Hess RF,Dakin SC,Tewfik M,Brown B

更新日期：2001-08-01 00:00:00

abstract：:A chemical mutagenesis to identify zebrafish eye morphological mutants was performed by screening F(3) larvae at 5 and 7 days post-fertilization (dpf) for changes in eye or pupil size. Based on histological analysis, four different phenotypic classes were obtained. The two Class I and three Class II mutants are all ch...

journal_title：Vision research

authors： Vihtelic TS,Hyde DR

更新日期：2002-02-01 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：: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

authors： IJspeert JK,van den Berg TJ,Spekreijse H

更新日期：1993-01-01 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：:When our eyes are tracking a target that is moving in front of a structured background, global motion of equal speed is induced in the opposite direction. This effect has been termed reafference, which, astonishingly, does not significantly affect the execution of such pursuit eye movements. Employing brief and unexpe...

journal_title：Vision research

authors： Lindner A,Schwarz U,Ilg UJ

更新日期：2001-06-01 00:00:00

abstract：:Foley [J. Opt. Soc. Am. A 11 (1994) 1710] has proposed an influential psychophysical model of masking in which mask components in a contrast gain pool are raised to an exponent before summation and divisive inhibition. We tested this summation rule in experiments in which contrast detection thresholds were measured fo...

journal_title：Vision research

authors： Meese TS,Holmes DJ

更新日期：2002-04-01 00:00:00

abstract：:The cornea of the goby Pomatoschistus minutus is iridescent. Spectral reflectance measurements show that the colour of the iridescence responds to light shifting to longer wavelengths when illuminated and shifting to shorter wavelengths when dark adapted. After 2-3 hr dark adaptation the iridescence is no longer visib...

journal_title：Vision research

authors： Shand J,Lythgoe JN

更新日期：1987-01-01 00:00:00

abstract：:Sensory, cognitive and motor processing can result in changes of the ongoing EEG in form of an event-related desynchronization (ERD) or event-related synchronization (ERS). Both phenomena are time-locked but not phase-locked to the event and they are highly frequency-band specific. The ERD is interpreted as a correlat...

journal_title：Vision research

authors： Pfurtscheller G

更新日期：2001-01-01 00:00:00

abstract：:We argue against recent claims by Erkelens and van Ee (Vision Res., in press) and by Erkelens (Vision Res. 40 (2000) 2411) that "the concept of the cyclopean eye is em leader always irrelevant as far as vision is concerned" (p. 1157) [corrected] and that "perceived direction during monocular viewing is based on the si...

journal_title：Vision research

authors： Ono H,Mapp AP,Howard IP

更新日期：2002-05-01 00:00:00

abstract：:Learning to read is extremely difficult for about 10% of children across cultures because they are affected by developmental dyslexia (DD). According to the dominant view, DD is considered an auditory-phonological processing deficit. However, accumulating evidence from developmental and clinical vision science, sugges...

journal_title：Vision research

authors： Gori S,Facoetti A

更新日期：2014-06-01 00:00:00