Abstract:
:Alpha ganglion cells from the midperiphery of the rabbit retina were recorded intracellularly under visual control, in a superfused everted eyecup, and labeled with HRP. Their physiology and large somata with broad dendritic arbors identified them as uniform populations of ON- and OFF-center alpha ganglion cells, which typically displayed transient/sustained light-evoked responses. When dark adapted, the light-evoked responses from both ON- and OFF-center alpha ganglion cells were more sustained than those generally seen under light-adapted conditions. During dark-adapted (scotopic) conditions, stimulation with dim full-field illumination and small spots, either positioned over the soma or displaced 450 microns from the soma, all elicited pure center responses. After light adaptation (photopic conditions), the displaced small spots that previously evoked center responses elicited antagonistic surround responses from both ON- and OFF-center cells. Thus, as originally described in cat retina (Barlow et al., 1957), the receptive-field organization of ganglion cells changed between dark and light adaptation, and an absence or presence of surround antagonism was indicative of scotopic versus photopic states.
journal_name
Vis Neuroscijournal_title
Visual neuroscienceauthors
Muller JF,Dacheux RFdoi
10.1017/s0952523800011512subject
Has Abstractpub_date
1997-03-01 00:00:00pages
395-401issue
2eissn
0952-5238issn
1469-8714pii
S0952523800011512journal_volume
14pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1017/s0952523899166100
更新日期:1999-11-01 00:00:00
abstract::Inhibitory synaptic transmission via GABA and glycine receptors plays a crucial role in shaping the excitatory response of neurons in the retina. Whole-cell recordings were obtained from ganglion cells in the intact rabbit eyecup preparation to correlate GABA- and glycine-activated currents with the presence of their ...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523803203072
更新日期:2003-05-01 00:00:00
abstract::In the reverse Stroop task, observers are instructed to ignore the ink color in which a color word is printed (the distractor color) and to respond to the meaning of the color word (the target). Reaction times (RTs) are faster with congruent combinations when the ink color matches the word than with incongruent combin...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523806233388
更新日期:2006-05-01 00:00:00
abstract::The aim of this study was to assess the plasticity of human voluntary fixational eye movement control in relation to visual experience/chronic visual deprivation. Twelve blind adults participated (self-reported vision < or = light perception in each eye; age range = 23-56 years; visual experience range = 0-28 years; b...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523802194090
更新日期:2002-07-01 00:00:00
abstract::Arrestins participate in the termination of phototransduction in both vertebrates and invertebrates. However, the visual arrestins of invertebrates and vertebrates differ significantly from one another in that the invertebrate visual arrestins become phosphorylated rapidly in response to light while those in the photo...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800175145
更新日期:2000-09-01 00:00:00
abstract::In human subjects, the blind spot is perceptually filled-in by color and brightness from the surrounding visual field. The present behavioral study examined the occurrence of color filling-in at the blind spot in monkeys. First, the location of the blind spot was determined using a monocular saccade task. The blind sp...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800006921
更新日期:1994-11-01 00:00:00
abstract::The visual response to a flash given in the dark is known to saturate according to the Michaelis-Menten relationship. Nevertheless, the incremental response from increasing levels of mean luminance tends to follow a Weber-Fechner relationship well into the saturation range determined from the Michaelis-Menten results....
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800006593
更新日期:1991-04-01 00:00:00
abstract::Absorbance spectra of cone outer segments and oil droplets were recorded microspectrophotometrically in the retina of the red-eared turtle, Trachemys scripta elegans. There are four cone visual pigments, with lambda(max) = 617 nm (red sensitive), 515 nm (green sensitive), 458 nm (blue sensitive), and 372 nm (UV-sensit...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523801185081
更新日期:2001-09-01 00:00:00
abstract::Population-based studies of retinal neurons have helped to reveal their natural types in mammals and teleost fishes. In this, the first such study in a frog, labeled ganglion cells of the mesobatrachian Xenopus laevis were examined in flatmounts. Cells with large somata and thick dendrites could be divided into three ...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s095252380001155x
更新日期:1997-09-01 00:00:00
abstract::Electroretinogram (ERG) responses of the cone system to a flickering stimulus can exhibit a cyclic variation in amplitude. This phenomenon of synchronous period doubling has been attributed to a nonlinear feedback mechanism within the retina that alters response gain. The aim of the present study was to investigate in...
journal_title:Visual neuroscience
pub_type: 临床试验,杂志文章
doi:10.1017/S0952523805226111
更新日期:2005-11-01 00:00:00
abstract::Neighboring retinal ganglion cells often spike synchronously, but the possible function and mechanism of this synchrony is unclear. Recently, the strength of the fast correlation between ON-OFF directionally selective cells of the rabbit retina was shown to be stimulus dependent. Here, we extend that study, investigat...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523807070757
更新日期:2007-11-01 00:00:00
abstract::Increment threshold functions of the electroretinogram (ERG) b-wave were obtained from goldfish using an in vivo preparation to study intraretinal mechanisms underlying the increase in perceived brightness induced by depletion of retinal dopamine by 6-hydroxydopamine (6-OHDA). Goldfish received unilateral intraocular ...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s095252380000300x
更新日期:1994-07-01 00:00:00
abstract::We investigated whether regenerating mature axons recapitulate embryonic features essential to successful reconnectivity within the injured nervous system. Strips from embryonic and adult chick retinae were cultured, and outgrowing axons were examined morphometrically and immunohistochemically. In addition, the target...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800002558
更新日期:1991-06-01 00:00:00
abstract::Monocular deprivation (MD) by lid suture is one of the classic paradigms for the study of developmental plasticity in the cerebral cortex, and we have detailed knowledge of its anatomical and physiological consequences as well as underlying molecular and cellular mechanisms. However, the effects of other forms of mani...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523812000260
更新日期:2012-09-01 00:00:00
abstract::Color vision impairment was examined in patients with type 2 diabetes mellitus (DM2) without retinopathy. We assessed the type and degree of distortions of individual color spaces. DM2 patients (n = 32), and age-matched controls (n = 20) were tested using the Farnsworth D-15 and the Lanthony D-15d tests. In addition, ...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523806233546
更新日期:2006-05-01 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
pub_type: 杂志文章
doi:10.1017/s095252380000403x
更新日期:1991-09-01 00:00:00
abstract::To investigate the influence of voltage-sensitive conductances in shaping light-evoked responses of retinal bipolar cells, whole-cell recordings were made in the slice preparation of the tiger salamander, Ambystoma tigrinum. To study contrast encoding, the retina was stimulated with 0.5-s steps of negative and positiv...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523803201036
更新日期:2003-01-01 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
pub_type: 杂志文章
doi:10.1017/s0952523800006398
更新日期:1992-07-01 00:00:00
abstract::Relational color constancy refers to the constancy of the perceived relations between the colors of surfaces of a scene under changes in the spectral composition of the illuminant. Spatial ratios of cone excitations provide a natural physical basis for this constancy, as, on average, they are almost invariant under il...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s095252380421327x
更新日期:2004-05-01 00:00:00
abstract::Dopaminergic interplexiform cells in the retina of the blue acara were investigated using an antiserum against tyrosine hydroxylase and PAP visualization. In whole-mount preparations, we observed a homogeneous distribution of cell bodies throughout the retina without any indication of regional specialization. At the f...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800010737
更新日期:1992-09-01 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
pub_type: 杂志文章
doi:10.1017/s0952523899164010
更新日期:1999-07-01 00:00:00
abstract::Tritiated neurotransmitter candidates were unilaterally injected in visual cortical regions with abundant corpus callosum connections. D-aspartate (Asp) or gamma-aminobutyric acid (GABA) was injected along the area 17/18 border in cat, and the area 17/18a and 17/18b borders in rat. Retrograde Asp label was found contr...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800004351
更新日期:1989-01-01 00:00:00
abstract::We have developed two brain slice preparations for studying tectofugal visual pathways in the chick: conventional, 400-microns slices ("thin slices"), and "thick slices" which encompass the rostral pole of the optic tectum and the contralateral optic nerve. Stimulation was delivered with a bipolar electrode positioned...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800008622
更新日期:1996-07-01 00:00:00
abstract::To test the hypothesis that light-evoked cone contraction in eye cups from Xenopus laevis is controlled through a direct mechanism initiated by the cone's own photopigment, we conducted spectral-sensitivity experiments. We estimate that initiation of contraction of red absorbing cones (611 nm) is 1.5 log units more se...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800002893
更新日期:1992-03-01 00:00:00
abstract::R1-6 dominated electroretinographic (ERG) spectral sensitivities were determined as a function of days posteclosion from carotenoid deprived and replaced white-eyed Drosophila. The sensitivity of flies deprived from egg to adult waxed (about 1.5 log units by day 3), and then waned gradually from 3-11 days (over 2 log ...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800011263
更新日期:1992-11-01 00:00:00
abstract::In the human eye, domination of the electroretinogram (ERG) by the b-wave and other postreceptor components ordinarily obscures all but the first few milliseconds of the rod photoreceptor response to a stimulating flash. However, recovery of the rod response after a bright rest flash can be analyzed using a paired-fla...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800008774
更新日期:1997-01-01 00:00:00
abstract::The aim of this study was to determine whether agmatine, a channel permeable probe, can identify photoreceptor dysfunction in the Royal College of Surgeons (RCS) retina at an earlier stage to that shown by apoptosis or anatomical markers, and also characterize the neurochemical development of the inner retina in the n...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523801191066
更新日期:2002-01-01 00:00:00
abstract::As a part of ongoing efforts to understand the cholinergic circuitry in the mammalian retina, we studied the coexpression of nicotinic acetylcholine receptors (nAChRs) and gamma-aminobutyric acid (GABA), the GABA transporter 1 (GAT-1), or choline acetyltransferase (ChAT) immunoreactivity in the rabbit retina. Double-l...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523801181083
更新日期:2001-01-01 00:00:00
abstract::L and M cones, divided into two groups by absorption spectra, have not been distinguished by structure. Here, we report what may be such a difference. We reconstructed the synaptic terminals of 16 non-S cones and the dendritic arbors of their ON and OFF midget bipolar cells from high-magnification electron micrographs...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523810000477
更新日期:2011-01-01 00:00:00
abstract::The purpose of the present study was to examine the contributions made by cat posterior parietal cortex to the analyses of the relative position of objects in visual space. Two cats were trained on a landmark task in which they learned to report the position of a landmark object relative to a right or left food-reward...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800175042
更新日期:2000-09-01 00:00:00