The chromatic input to global motion perception.

abstract：:This study has shown that the retinae of Prototherian (egg-laying) mammals possess two neuronal types that are present in non-mammalian retinae, but absent or morphologically different in the retinae of Eutherian (placental) mammals. First, endogenous serotonin-like immunoreactivity has been localized in a population ...

journal_title：Visual neuroscience

authors： Young HM,Vaney DI

更新日期：1990-07-01 00:00:00

abstract：:The retina of salmonid fishes has two types of cone photoreceptors: single and double cones. At the nuclear level, these cones are distributed in a square mosaic such that the double cones form the sides of the square and the single cones occupy positions at the centre and at the corners of the square. Double cones co...

journal_title：Visual neuroscience

authors： Cheng CL,Flamarique IN

更新日期：2007-05-01 00:00:00

abstract：:Retinal ganglion cell (RGC) dendritic atrophy is an early feature of many forms of retinal degeneration, providing a challenge to RGC classification. The characterization of these changes is complicated by the possibility that selective labeling of any particular class can confound the estimation of dendritic remodeli...

journal_title：Visual neuroscience

authors： Tribble JR,Cross SD,Samsel PA,Sengpiel F,Morgan JE

更新日期：2014-11-01 00:00:00

abstract：:During adaptation to an increase in environmental luminance, retinal signaling adjustments are mediated by the neuromodulator dopamine. Retinal dopamine is released with light and can affect center-surround receptive fields, the coupling state between neurons, and inhibitory pathways through inhibitory receptors and n...

journal_title：Visual neuroscience

authors： Mazade RE,Eggers ED

更新日期：2020-02-12 00:00:00

abstract：:Much of what is currently known about the visual response of retinal bipolar cells is based on studies of rod-dominant responses to flashes in the dark in the isolated retina. This minireview summarizes quantitative findings on contrast processing in the intact light-adapted retina based on intracellular recording fro...

journal_title：Visual neuroscience

authors： Burkhardt DA

更新日期：2011-01-01 00:00:00

abstract：:Eyes of stomatopod crustaceans, or mantis shrimps, contain the greatest diversity of visual pigments yet described in any species, with as many as ten or more spectral classes present in a single retina. In this study, the eyes of seven species of mantis shrimp from three superfamilies of stomatopods were examined for...

journal_title：Visual neuroscience

authors： Goldsmith TH,Cronin TW

更新日期：1993-09-01 00:00:00

abstract：:The development of spatial vision is relatively well documented in human and nonhuman primates. However, little is known about the development of sensitivity to motion. We measured the development of sensitivity to direction of motion, and the relationship between motion and contrast sensitivity in macaque monkeys as ...

journal_title：Visual neuroscience

authors： Kiorpes L,Movshon JA

更新日期：2004-11-01 00:00:00

abstract：:This study used the swept spatial-frequency method to compare retinal and cortical acuity in anesthetized young adult rhesus monkeys. Visual evoked potentials (VEPs) and pattern electroretinographic responses (PERGs) were recorded from 25 monkeys (age range: 4-12 years) anesthetized with a continuous infusion of propo...

journal_title：Visual neuroscience

authors： Ver Hoeve JN,Danilov YP,Kim CB,Spear PD

更新日期：1999-07-01 00:00:00

abstract：:The distribution of GABA-like immunoreactivity in the pigeon visual system was studied during the first 9 days after hatching using a mouse monoclonal antibody, mAb 3A12, to glutaraldehyde linked GABA (Matute & Streit, 1986). GABA-like immunoreactivity was seen in cell bodies as well as in neuropil at the level of bot...

journal_title：Visual neuroscience

authors： Bagnoli P,Fontanesi G,Streit P,Domenici L,Alesci R

更新日期：1989-12-01 00:00:00

abstract：:Many cell types in the retina are coupled via gap junctions and so there is a pressing need for a potent and reversible gap junction antagonist. We screened a series of potential gap junction antagonists by evaluating their effects on dye coupling in the network of A-type horizontal cells. We evaluated the following c...

journal_title：Visual neuroscience

authors： Pan F,Mills SL,Massey SC

更新日期：2007-07-01 00:00:00

abstract：:The spatial and temporal interactions in the receptive fields of On-Off directionally selective (DS) ganglion cells endow them with directional selectivity. Using a variety of stimuli, such as sinusoidal gratings, we show that these interactions make directional selectivity of the DS ganglion cell robust with respect ...

journal_title：Visual neuroscience

authors： Grzywacz NM,Amthor FR

更新日期：2007-07-01 00:00:00

abstract：:Unilateral retinal impulse blockage with tetrodotoxin (TTX) induces reversible shrinkage and decreased cytochrome oxidase (CO) activity in alternate rows of supragranular, CO-rich puffs in the adult macaque striate cortex (Wong-Riley & Carroll, 1984b: Carroll & Wong-Riley, 1987). The present study extended the finding...

journal_title：Visual neuroscience

authors： Wong-Riley MT,Trusk TC,Tripathi SC,Hoppe DA

更新日期：1989-01-01 00:00:00

abstract：:In previous work, we have shown that sudden image displacements well outside the classical receptive field modulate the visual sensitivity of LGN relay cells. Here we report the effect of image displacements on the response versus contrast function. The stimuli consisted of a central spot of optimal size and polarity ...

journal_title：Visual neuroscience

authors： Felisberti F,Derrington AM

更新日期：1999-09-01 00:00:00

abstract：:AMPA-selective glutamate receptors play a major role in glutamatergic neurotransmission in the retina and are expressed in a variety of neuronal subpopulations. In the present study, immunocytochemical techniques were used to visualize the distribution of GluR2 and GluR4 subunits in the cat retina. Results were compar...

journal_title：Visual neuroscience

authors： Qin P,Pourcho RG

更新日期：1999-11-01 00:00:00

abstract：:The laminar and tangential organization of visual callosal projections of areas 17 and 18 were investigated in the adult ferret, using histochemical methods to visualize axonally transported horseradish peroxidase (HRP). Normal adult ferrets were given injections of HRP throughout one visual cortex or had gelfoam soak...

journal_title：Visual neuroscience

authors： Grigonis AM,Rayos del Sol-Padua RB,Murphy EH

更新日期：1992-07-01 00:00:00

abstract：:A series of psychophysical tests examining early and later aspects of image-motion processing were conducted in a patient with bilateral lesions involving the posterior visual pathways, affecting the lateral parietal-temporal-occipital cortex and the underlying white matter (as shown by magnetic resonance imaging stud...

journal_title：Visual neuroscience

authors： Vaina LM,Lemay M,Bienfang DC,Choi AY,Nakayama K

更新日期：1990-10-01 00:00:00

abstract：:Ablation of visual cortical areas 17 and 18 in neonatal and young adult cats induces novel retinal projections to terminate bilaterally in the lateral posterior nucleus (LP) at a position ventromedial from the medial interlaminar nucleus. Comparison with the visual-field maps of LP indicate that the terminations are f...

journal_title：Visual neuroscience

authors： Payne BR,Foley HA,Lomber SG

更新日期：1993-07-01 00:00:00

abstract：:The representation of the visual field in the part of area 17 containing neurons that project axons across the corpus callosum to the contralateral hemisphere was defined in the cat. Of 1424 sites sampled along 77 electrode tracks, 768 proved to be in the callosal sending zone, which was identified by retrograde trans...

journal_title：Visual neuroscience

authors： Payne BR

更新日期：1991-09-01 00:00:00

abstract：:Psychophysical research has documented the existence of three processes in light adaptation: a fast subtractive process, a divisive process that is fast at light onset and slower at light offset, and a very slow subtractive process (Hayhoe et al., 1987). In the neural model developed here, the fast subtractive process...

journal_title：Visual neuroscience

authors： Wilson HR

更新日期：1997-05-01 00:00:00

abstract：:Natural scenes contain a variety of visual cues that facilitate boundary perception (e.g., luminance, contrast, and texture). Here we explore whether single neurons in early visual cortex can process both contrast and texture cues. We recorded neural responses in cat A18 to both illusory contours formed by abutting gr...

journal_title：Visual neuroscience

authors： Song Y,Baker CL Jr

更新日期：2007-01-01 00:00:00

abstract：:Saccadic suppression is the reduced visibility that occurs during saccadic eye movements. Recent psychophysical studies have suggested that this is due to a reduction in responsiveness of magnocellular (M), but not parvocellular (P), cells of the lateral geniculate nucleus. To address this and other phenomena of respo...

journal_title：Visual neuroscience

authors： Ramcharan EJ,Gnadt JW,Sherman SM

更新日期：2001-03-01 00:00:00

abstract：:The sudden displacement of the retinal image during a saccade raises the visual threshold of human observers to foveal stimuli. The fall in visual sensitivity observed during this phenomenon, known as saccadic suppression, seems to occur very early in the visual processing chain. The lateral geniculate nucleus (LGN) i...

journal_title：Visual neuroscience

authors： Derrington AM,Felisberti F

更新日期：1998-09-01 00:00:00

abstract：:Some visual stimuli produce a strong percept of motion, even though they fail to excite motion detectors based on Fourier energy or cross correlation. Models which suffice to explain the motion percept in these non-Fourier motion (NFM) stimuli include linear spatiotemporal filtering, followed by rectification, followe...

journal_title：Visual neuroscience

authors： Victor JD,Conte MM

更新日期：1992-08-01 00:00:00

abstract：:Simple reaction times (RTs) were measured to brief temporally blurred (total onset 570 ms) Gaussian isoluminant chromatic patches (s.d. 0.5 degrees) whose chromaticities lay along the cardinal chromatic axes (0 degrees, 90 degrees, 180 degrees, and 270 degrees in MBDKL color space). Bipolar adapting stimuli were emplo...

journal_title：Visual neuroscience

authors： Parry NR,Murray IJ,McKeefry DJ

更新日期：2008-05-01 00:00:00

abstract：:Horizontal cells and cone photoreceptors in the vertebrate retina are interconnected by a complex network of synapses leading to the generation of color-coded responses in chromaticity horizontal cells. A simple cascade model of excitatory feedforward and inhibitory feedback synapses had been suggested to underlie the...

journal_title：Visual neuroscience

authors： Asi H,Perlman I

更新日期：1998-01-01 00:00:00

abstract：:We tested the hypothesis that gamma-aminobutyric acid (GABA) is the transmitter released by barnacle photoreceptors onto postsynaptic cells (I-cells). GABA was applied to I-cells either by superfusion or by ejecting it with pressure from a pipette positioned close to the I-cell's soma. The I-cell's response to GABA wa...

journal_title：Visual neuroscience

authors： Callaway JC,Stuart AE

更新日期：1989-10-01 00:00:00

abstract：:Several lines of evidence indicate that retinal photoreceptors produce melatonin. However, there are other potential melatonin sources in the retina, and melatonin synthesis can be regulated by feedback from the inner retina. To analyze cellular mechanisms of melatonin regulation in retinal photoreceptors, we have dev...

journal_title：Visual neuroscience

authors： Cahill GM,Besharse JC

更新日期：1992-05-01 00:00:00

abstract：:The activity of the endogenous retinal dopamine (DA) pathway has been examined in the pigmented rat using retinas obtained from normal adult (approximately 3 months) and senile adults (approximately 24 months) using an in vitro electrophysiological approach. By comparing the pharmacological sensitivity of the horizont...

journal_title：Visual neuroscience

authors： Hankins MW

更新日期：2000-11-01 00:00:00

abstract：:The effects of dopamine on luminosity-type horizontal cells have been documented in different vertebrate retinas, both in vivo and in vitro. Some of these effects may reflect direct action of dopamine onto these cells, but indirect effects mediated by presynaptic neurons cannot be ruled out. Furthermore, direct effect...

journal_title：Visual neuroscience

authors： Ammermüller J,Weiler R,Perlman I

更新日期：1995-05-01 00:00:00

abstract：:Lateral suprasylvian visual cortex in the cat has been studied extensively, but its retinotopic organization remains controversial. Although some investigators have divided this region into many distinct areas, others have argued for a simpler organization. A clear understanding of the region's retinotopic organizatio...

journal_title：Visual neuroscience

authors： Sherk H,Mulligan KA

更新日期：1993-01-01 00:00:00