Occipital lobe morphology in normal individuals assessed by magnetic resonance imaging (MRI).

abstract：:Motion coherence thresholds decline with an increase in the number of frames in a random dot kinematogram (RDK), indicating that motion information can be integrated across successive frames. We investigated whether such temporal integration would be disrupted by a brief interval (32-600 msec) inserted into a motion s...

journal_title：Vision research

authors： Raymond JE,Isaak M

更新日期：1998-02-01 00:00:00

abstract：:It has been suggested that schizophrenia is associated with a magnocellular deficit. This would predict a loss of contrast sensitivity at low spatial and/or at high temporal frequencies. We here review research that tested contrast sensitivity in individuals with schizophrenia. We find that the results of this researc...

journal_title：Vision research

authors： Skottun BC,Skoyles JR

更新日期：2007-10-01 00:00:00

abstract：:Random dot motion (RDM) displays have emerged as one of the standard stimulus types employed in psychophysical and physiological studies of motion processing. RDMs are convenient because it is straightforward to manipulate the relative motion energy for a given motion direction in addition to stimulus parameters such ...

journal_title：Vision research

authors： Pilly PK,Seitz AR

更新日期：2009-06-01 00:00:00

abstract：:Neurons involved in the transfer of rod signals to the ganglion cells in the retina of the cat have been recorded from and stained with horseradish peroxidase (HRP) and their synaptic connections determined by electron microscopy. The single morphological type of rod bipolar cell responds with a sustained hyperpolariz...

journal_title：Vision research

authors： Kolb H,Nelson R

更新日期：1983-01-01 00:00:00

abstract：:Some theories for visual receptive fields postulate that they depend on the image statistics of the natural habitat. Consequently, different habitats may lead to different receptive fields. We thus decided to study how some of the most relevant statistics vary across habitats. In particular, atmospheric and underwater...

journal_title：Vision research

authors： Balboa RM,Grzywacz NM

更新日期：2003-11-01 00:00:00

abstract：:In this study, we show that glutamate regulates the viability of cultured retinal cells upon transient glucose deprivation. At low concentrations (10-100 microM) glutamate decreased MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] reduction to about 50% of control and decreased intracellular ATP leve...

journal_title：Vision research

authors： Rego AC,Santos MS,Areias F,Proença T,Oliveira CR

更新日期：2001-03-01 00:00:00

abstract：:The apparent motion of a discretely displaced complex waveform with a periodic contrast modulation or "beat" of frequency f and sinusoidal components of frequencies 3f and 4f was examined at various interstimulus intervals (ISIs). At short ISIs perception of motion of both the beat and an aliased component of the wave...

journal_title：Vision research

authors： Hammett ST,Ledgeway T,Smith AT

更新日期：1993-05-01 00:00:00

abstract：:Normal binocular vision emerges from the combination of neural signals arising within separate monocular pathways. It is natural to wonder whether both eyes contribute equally to the unified cyclopean impression we ordinarily experience. Binocular rivalry, which occurs when the inputs to the two eyes are markedly diff...

journal_title：Vision research

authors： Dieter KC,Sy JL,Blake R

更新日期：2017-12-01 00:00:00

abstract：:Previous studies have shown that spatial context influences the perceptual interpretation of ambiguous figures such as the Necker cube; however, the properties that mediate the influences of an unambiguous spatial context have yet to be investigated. Here we consider the effect of the motion and position of an unambig...

journal_title：Vision research

authors： Ouhnana M,Kingdom FAA

更新日期：2016-09-01 00:00:00

abstract：:Two-frame random-element kinematograms were used to study the matching algorithm employed by the visual system to keep track of moving elements. Previous data have shown that the maximum spatial displacement detectable (dmax) for random-dot kinematogram stimuli increases both with increasing dot size and with decreasi...

journal_title：Vision research

authors： Eagle RA,Rogers BJ

更新日期：1996-02-01 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：:Studies of high-level models of visual object categorization have left unresolved issues of neurobiological relevance, including how features are extracted from the image and the role played by memory capacity in categorization performance. We compared the ability of a comprehensive set of models to match the categori...

journal_title：Vision research

authors： Peters RJ,Gabbiani F,Koch C

更新日期：2003-09-01 00:00:00

abstract：:Having long considered that extraretinal information plays little or no role in spatial vision, the study of structure from motion (SfM) has confounded a moving observer perceiving a stationary object with a non-moving observer perceiving a rigid object undergoing equal and opposite motion. However, recently it has be...

journal_title：Vision research

authors： Wexler M,Lamouret I,Droulez J

更新日期：2001-10-01 00:00:00

abstract：:In contour integration, increased difficulty in detection and shape discrimination of a chain of parallel elements (a ladder contour) compared to collinear elements (a snake contour) suggests more extensive processing of ladders than of snakes. In addition, conceptual similarities between ladders and textures - which ...

journal_title：Vision research

authors： Schmidt F,Vancleef K

更新日期：2016-09-01 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

authors： Nerger JL,Piantanida TP,Larimer J

更新日期：1993-01-01 00:00:00

abstract：:The spatial vision of two adult galagos (Galago crassicaudatus) was assessed using a two choice discrimination task to determine their contrast sensitivity. Both contrast sensitivity functions exhibited low and high spatial frequency attenuation with the peak sensitivity at 1%. For one animal, the peak occurred at 0.5...

journal_title：Vision research

authors： Langston A,Casagrande VA,Fox R

更新日期：1986-01-01 00:00:00

abstract：:Spectral sensitivity was measured in freely moving, light adapted goldfish using a behavioral training technique. The curve reveals 3 pronounced maxima at 470, 540 and 660 nm. Compared with the absorption spectra of the cone photopigments with lambda max at 450, 530 and 625 nm, the maxima were much narrower and shifte...

journal_title：Vision research

authors： Neumeyer C

更新日期：1984-01-01 00:00:00

abstract：:Observers viewed 200 msec presentations of gratings containing first (0.5 c/deg) and third (1.5 c/deg) harmonic components. The phase of the third harmonic and the absolute position of the grating on the screen varied randomly from trial to trial. Classification of the phase relation (0, 90, 180 or 270 deg was 99% per...

journal_title：Vision research

authors： Georgeson MA,Turner RS

更新日期：1984-01-01 00:00:00

abstract：:We describe a model and simulations of boundary assignment by cortical neurons, a process that assigns edges to figural image regions, as opposed to the background regions on the other side of the edge. The model is composed of several areas, resembling the hierarchical feedforward-feedback organization of areas in th...

journal_title：Vision research

authors： Jehee JF,Lamme VA,Roelfsema PR

更新日期：2007-04-01 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：:Adaptation paradigms highlight the dynamic nature of face coding and suggest that identity is coded relative to an average face that is tuned by experience. In low-level vision, adaptive coding can enhance sensitivity to differences around the adapted level. We investigated whether sensitivity to differences around th...

journal_title：Vision research

authors： Rhodes G,Maloney LT,Turner J,Ewing L

更新日期：2007-03-01 00:00:00

abstract：:An adaptive mechanism controls the strength of innervation to the two eyes independently. However, under some circumstances an adjustment in strength of innervation to one eye is generalized to the other. The coupling and uncoupling of the two eyes during saccadic motor learning was studied using the technique of intr...

journal_title：Vision research

authors： Albano JE,Marrero JA

更新日期：1995-12-01 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：:Current concepts of action and perception emphasise a dissociation between conscious visual recognition and visual action control. These models do not expect an effect of the recognisable identity of an object on the kinematic parameterisation of grasping movements under binocular viewing conditions without pre-test l...

journal_title：Vision research

authors： Borchers S,Himmelbach M

更新日期：2012-08-15 00:00:00

abstract：PURPOSE:A major drawback of the mouse model of myopia is that the ocular dimensions cannot be measured in vivo, and that histological techniques post-mortem suffer from limited resolution. We have tested the potential of a newly developed technique, optical low coherence interferometry (OLCI), adapted for short measure...

journal_title：Vision research

authors： Schmucker C,Schaeffel F

更新日期：2004-01-01 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

authors： Sharpe LT,Fach C,Nordby K

更新日期：1988-01-01 00:00:00

abstract：:A rotating Pulfrich effect is described and analysed in relation to the Fertsch-Pulfrich latency difference theory. Although some of the predictions conflicted with observations described by Pulfrich [Naturwissenschaften 10, 553-564 (1922)], they were confirmed by experiment, and led to a simple and sensitive method o...

journal_title：Vision research

authors： Nickalls RW

更新日期：1986-01-01 00:00:00

abstract：:The perceived duration of a visual event is highly related to stimulus attributes. It is well known that a moving stimulus appears to last longer than a static one does. Previous studies have demonstrated that the time dilation in a moving stimulus can be influenced by perceived motion, rather than by mere physical mo...

journal_title：Vision research

authors： Hayashi D,Iwasawa H,Osugi T,Murakami I

更新日期：2019-03-01 00:00:00

abstract：:Because the glutamate analog 2-amino-4-phosphonobutyric acid (APB) alters synaptic transmission at the outer plexiform layer in goldfish we asked whether intraocular injection of ABP would alter the spectral sensitivity of the retina. The spectral sensitivity of the ON and OFF components of the optic nerve response (O...

journal_title：Vision research

authors： Demarco PJ Jr,Powers MK

更新日期：1994-01-01 00:00:00

abstract：:We devised an experimental strategy for assessing the cortical cross-talk between ocular subsystems. For this purpose we measured the interocular transfer of adaptation (IOTA) at different levels in the human brain, using orientation-selective fMRI adaptation. We tested 10 normally sighted and 10 stereoblind or stereo...

journal_title：Vision research

authors： Jurcoane A,Choubey B,Mitsieva D,Muckli L,Sireteanu R

更新日期：2009-06-01 00:00:00