An adaptation-induced pop-out in visual search.

abstract：:The perceived blur of drifting sinusoidal gratings was compared to that of static, blurred "square wave" gratings before and after adaptation to a missing fundamental (MF) pattern. The results indicate that the perceived blur of a drifting sine grating is inversely related to its drift speed. However, after adaptation...

journal_title：Vision research

authors： Hammett ST,Bex PJ

更新日期：1996-09-01 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

authors： Aldaba M,Vilaseca M,Díaz-Doutón F,Arjona M,Pujol J

更新日期：2012-06-01 00:00:00

abstract：:Visual marking refers to the phenomenon in which old items in a visual search are excluded from the search when new items appear in the visual field. Visual marking may result from inhibition of irrelevant information at the location of old items before new items appear. Moreover, sensitivity to increments in contrast...

journal_title：Vision research

authors： Osugi T,Murakami I

更新日期：2014-02-01 00:00:00

abstract：:Patients with central vision loss are often advised by low vision rehabilitation professionals to read bolder print to ameliorate their reading difficulties. Is boldface print really effective in improving reading performance for people with central vision loss? In this study, we evaluated how reading speed depends on...

journal_title：Vision research

authors： Chung STL,Bernard JB

更新日期：2018-12-01 00:00:00

abstract：:In this study we describe a measurement method which closely approximates in vivo retinal thickness. Using this method we examined the laminar organisation of vascular and avascular retinae from placental and marsupial mammals. Thickness measurements on retinal wholemounts show that the avascular retinae of the placen...

journal_title：Vision research

authors： Buttery RG,Hinrichsen CF,Weller WL,Haight JR

更新日期：1991-01-01 00:00:00

abstract：:Some results from a survey of 43 patients who had a monofocal intra-ocular-lens (IOL) in one eye and a concentric bifocal intra-ocular-lens in the fellow eye are reported. Twenty patients with 6/9 or better post-operative visual acuity in both eyes, participated in the main part of the study. Optical transfer function...

journal_title：Vision research

authors： Charman WN,Murray IJ,Nacer M,O'Donoghue EP

更新日期：1998-09-01 00:00:00

abstract：:Blurred images may appear sharper when drifting than when stationary. But, paradoxically, moving sharp edges may appear more blurred. To resolve this paradox, the perceived sharpness of drifting, blurred, square wave gratings was compared with that of their static analogues over a range of speeds, blurs and spatial fr...

journal_title：Vision research

authors： Hammett ST,Georgeson MA,Gorea A

更新日期：1998-07-01 00:00:00

abstract：:The responses of neurons in primary visual cortex (V1) to stimulation of their receptive field (RF) are modulated by stimuli in the RF surround. This modulation is suppressive when the stimuli in the RF and surround are of similar orientation, but less suppressive or facilitatory when they are cross-oriented. Similarl...

journal_title：Vision research

authors： Nurminen L,Angelucci A

更新日期：2014-11-01 00:00:00

abstract：:This brief review article brings together a series of related experiments in psychophysics and physiology that show striking similarities between measurements in human observers and in single neurons. We consider seven pairs of primary research articles, each pair consisting of one paper in physiology and one in psych...

journal_title：Vision research

authors： Neri P,Levi DM

更新日期：2006-08-01 00:00:00

abstract：:The attentional mechanisms in the brain responsible for fast pop-out search and slower difficult search have been shown to interact. Even if pop-out search is interrupted, by the addition of extra distractors to an initially simple search display, the partial computations calculated by the mechanisms responsible for p...

journal_title：Vision research

authors： Olds ES,Punambolam RJ

更新日期：2002-03-01 00:00:00

abstract：:A counterphase-modulated (i.e. contrast reversing) pattern will affect hypothetical neural elements sensitive to motion as well as hypothetical elements sensitive to changes in contrast and other elements sensitive to local luminance. Attempts to describe visual evoked potentials (VEPs) to contrast reversal entirely i...

journal_title：Vision research

authors： Spekreijse H,Dagnelie G,Maier J,Regan D

更新日期：1985-01-01 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：: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

authors： Calvo MG,Nummenmaa L

更新日期：2011-08-01 00:00:00

abstract：:Two experiments are reported in which observers judged the sign and magnitude of surface curvature from shaded images of an indoor scene. The depicted surfaces were illuminated by an area light in the ceiling or floor, and the illumination was attenuated with distance in a physically correct manner. The displays were ...

journal_title：Vision research

authors： Liu B,Todd JT

更新日期：2004-01-01 00:00:00

abstract：:If a brief test pulse is presented on a prolonged background pedestal, it is strongly masked if presented at the start of the pedestal, and is only weakly masked if presented 200 ms after the start. This has been suggested to occur due to contrast gain mechanisms that reduce the representation of the pedestal and ther...

journal_title：Vision research

authors： Snowden RJ

更新日期：2001-07-01 00:00:00

abstract：:Visual performance is greatly impaired when tested with heterochromatic isoluminant stimuli. It is thus concluded that the chromatic system contribution to many visual tasks is limited. We suggest that unless color and luminance are shown to be processed independently, such experiments do not demonstrate shortcomings ...

journal_title：Vision research

authors： Gur M,Akri V

更新日期：1992-07-01 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：:Subjects indicated the tilt of dotted planes rotating in depth, in monocular viewing, under perspective projection. The responses depended on the FOV (field of view) and on the angle W between the tilt and frontal translation (orthogonal to the rotation axis). Response accuracy increased with the FOV, and decreased wi...

journal_title：Vision research

authors： Zhong H,Cornilleau-Pérès V,Cheong LF,Yeow GM,Droulez D

更新日期：2006-10-01 00:00:00

abstract：BACKGROUND:According to the Helmholtz theory of accommodation the loss of accommodation amplitude is caused by the growing sclerosis of the crystalline lens, whereas the ciliary muscle and the lens capsule are mainly uneffected by age. A permanent treatment method for presbyopia which offers a dynamic accommodation abi...

journal_title：Vision research

authors： Schumacher S,Oberheide U,Fromm M,Ripken T,Ertmer W,Gerten G,Wegener A,Lubatschowski H

更新日期：2009-07-01 00:00:00

abstract：:For rapidly translating targets, vernier thresholds correspond to millisecond asynchronies between targets. The 'temporal hypothesis' is that these thresholds reflect the limiting sensitivity of asynchrony detectors. Previous studies showed that temporal thresholds are generally higher than vernier thresholds, but fai...

journal_title：Vision research

authors： Mechler F,Victor JD

更新日期：2000-01-01 00:00:00

abstract：:We investigated whether the effect of covert attention on information accrual varies with eccentricity (4 degrees vs 9 degrees) and the complexity of the visual search task (feature vs conjunction). We used speed-accuracy tradeoff procedures to derive conjoint measures of the speed of information processing and accura...

journal_title：Vision research

authors： Carrasco M,Giordano AM,McElree B

更新日期：2006-06-01 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：:This is the first study to demonstrate the selectivity of learning for contrast polarity. The finding is the main result of an investigation into the existence of central and peripheral vision mechanisms selective for contrast polarity within the texture-segregation process, using the perceptual learning paradigm in a...

journal_title：Vision research

authors： Grieco A,Casco C,Roncato S

更新日期：2006-10-01 00:00:00

abstract：:We have investigated first-order artifacts in second-order motion perception. Subjects were required to identify the orientation and direction of a drifting sinusoidal contrast modulation. When the carrier consisted of static two-dimensional noise, performance often reflected the use of first-order artifacts that aris...

journal_title：Vision research

authors： Smith AT,Ledgeway T

更新日期：1997-01-01 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

authors： Krauskopf J,Li X

更新日期：1999-10-01 00:00:00

abstract：:In a rapid categorisation task, monkeys and humans had to detect a target (animal or food) in briefly flashed (32 ms) and previously unseen natural images. Removing colour cues had very little effect on average performance. Impairments were restricted to a mild accuracy drop (in some human subjects) and a small reacti...

journal_title：Vision research

authors： Delorme A,Richard G,Fabre-Thorpe M

更新日期：2000-01-01 00:00:00

abstract：:A modified version of the 'path finder' display consisting of many small oriented Gabor patches was used to study the joint contributions of spatial and temporal structures to shape perception. A two-interval forced-choice procedure measured detectability of curved 'paths' defined by orientation ('good continuation') ...

journal_title：Vision research

authors： Lee SH,Blake R

更新日期：2001-07-01 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

authors： Aldrovani M,Guaraldo AM,Vidal BC

更新日期：2007-12-01 00:00:00

abstract：:The temporal resolution of the visual system progressively increases with light intensity. Under scotopic conditions, temporal resolution is relatively poor, and may be limited by both retinal and cortical processes. Rod photoresponses themselves are quite slow because of the slowly deactivating biochemical cascade ne...

journal_title：Vision research

authors： Fortenbach CR,Kessler C,Peinado Allina G,Burns ME

更新日期：2015-05-01 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

authors： Scholl HP,Kremers J

更新日期：2003-10-01 00:00:00