Abstract:
:Recordings were taken from infragranular layers of area 17 of anesthetized monkeys with an array of 30 microelectrodes matching about one hypercolumn. From intracortical spike-train correlations, the novel neuronal property "delay scale position" related to retino-cortical delays, was derived. Relationships were established to the degree of spike isolation and to classical response properties. Direction selectivity, spike rate, spike-isolation quality, delay scale, and color selectivity could be linked to an underlying factor upon which the latter variables depend in a fixed way. Neurons with similar factors were characterized by non-delayed correlations. The link was more strict in layer VI than in layer V, and it was related to the parvo/magnocellular subdivision of the visual system.
journal_name
Vis Neuroscijournal_title
Visual neuroscienceauthors
Krüger Jdoi
10.1017/s0952523800000171subject
Has Abstractpub_date
1990-08-01 00:00:00pages
135-42issue
2eissn
0952-5238issn
1469-8714pii
S0952523800000171journal_volume
5pub_type
杂志文章abstract::The presence of opioid receptors has been confirmed by a variety of techniques in vertebrate retinas including those of mammals; however, in most reports, the location of these receptors has been limited to retinal regions rather than specific cell types. Concurrently, our knowledge of the physiological functions of o...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523812000156
更新日期:2012-05-01 00:00:00
abstract::The modulatory influence of pretectal neurons on retino-geniculate transmission in the cat was studied by cross-correlation analysis of single-unit activity simultaneously recorded from the dorsal lateral geniculate nucleus (dLGN) and the pretectum (PT) and with reversible inactivation of the PT by GABA microiontophor...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800007288
更新日期:1995-01-01 00:00:00
abstract::The large receptive fields of retinal horizontal cells are thought to reflect extensive electrical coupling via gap junctions. It was shown recently that the biotinylated tracers, biocytin and Neurobiotin, provide remarkable images of coupling between many types of retinal neuron, including horizontal cells. Further, ...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800009524
更新日期:1995-09-01 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
pub_type: 杂志文章
doi:10.1017/s0952523800176035
更新日期:2000-11-01 00:00:00
abstract::The human visual system is remarkably tolerant to degradation in image resolution: human performance in scene categorization remains high no matter whether low-resolution images or multimegapixel images are used. This observation raises the question of how many pixels are required to form a meaningful representation o...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523808080930
更新日期:2009-01-01 00:00:00
abstract::Rod and cone photoresponses in a variety of species have been accurately described with linear multistage filter models. In this study, the response latency and initial coding of intensity at two higher levels of visual processing are related to such photoreceptor responses. One level is the retinal output (spiking di...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800012499
更新日期:1989-07-01 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
pub_type: 杂志文章
doi:10.1017/s095252380000612x
更新日期:1993-09-01 00:00:00
abstract::A model of contrast discrimination performance in human observers is developed and then extended to cover effects on performance of anticholinergic drugs. It is shown that it is necessary to assume that neural noise increases at high spatial frequencies in order to provide a satisfactory model of variations in discrim...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800009123
更新日期:1996-09-01 00:00:00
abstract::By establishing an avascular, highly elastic, region within the fetal area of high acuity (AHA), the developing primate eye has created a unique substrate on which the mechanical forces of intraocular pressure (IOP) and growth-induced retinal stretch (stretch) can act. We proposed (Springer & Hendrickson, 2004b) that ...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S095252380522206X
更新日期:2005-03-01 00:00:00
abstract::The Food and Drug Administration (FDA) is responsible for determining whether medical device manufacturers have provided reasonable assurance, based on valid scientific evidence, that new devices are safe and effective for their intended use before they are introduced into the U.S. market. Most existing color vision d...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523804213256
更新日期:2004-05-01 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
abstract::Mechanisms that mediate the calcium influx in mammalian horizontal cells were studied. Horizontal cells (HCs) enzymatically dissociated from the rabbit retina were recorded by the whole-cell configuration of the patch-clamp technique and by calcium image ratioespectrophotometry of Fura-2 loaded cells. AMPA-preferring ...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:
更新日期:2001-11-01 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::The technique of current source-density analysis was applied to several components of the light-evoked field potentials (electroretinogram) from the retina of the superfused eyecup of rabbit. The depth distributions of the major current sources and sinks were: b-wave--sink at outer plexiform layer, source at inner ple...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523899162163
更新日期:1999-03-01 00:00:00
abstract::The inhibition of [3H]acetylcholine (ACh) release from cholinergic amacrine cells by glycine and GABA was studied using an in vivo eyecup preparation in anesthetized rabbits. Glycine (1 mM) had no effect on basal ACh release, but completely blocked the light-evoked release of ACh. Glycine also blocked the strong poten...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523898156067
更新日期:1998-11-01 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
pub_type: 杂志文章
doi:10.1017/s0952523800012396
更新日期:1989-01-01 00:00:00
abstract::Many diverse retinal disorders are characterized by retinal edema; yet, little experimental attention has been given to understanding the fundamental mechanisms underlying and contributing to these fluid-based disorders. Water transport in and out of cells is achieved by specialized membrane channels, with most rapid ...
journal_title:Visual neuroscience
pub_type: 杂志文章,评审
doi:10.1017/S0952523809090038
更新日期:2009-03-01 00:00:00
abstract::We studied the development of multibank rod retinae by monitoring the size-related addition of new layers of rod inner and outer segments in four species of deep-sea fishes and found two different growth paradigms. In the mesopelagic Chauliodus sloani, new banks of rod inner and outer segments are added as long as the...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s095252389815304x
更新日期:1998-05-01 00:00:00
abstract::Dark-adapted rods exert a tonic suppressive influence upon cone-mediated sensitivity to rapid flicker, a phenomenon called suppressive rod-cone interaction (SRCI). However, rod dark adaptation has negligible influence upon cone-mediated thresholds measured with more usual psychophysical procedures. The present study s...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s095252380000924x
更新日期:1992-02-01 00:00:00
abstract::Although the neural location of the plaid motion coherence process is not precisely known, the middle temporal (MT) cortical area has been proposed as a likely candidate. This claim rests largely on the neurophysiological findings showing that in response to plaid stimuli, a subgroup of cells in area MT responds to th...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s095252380000852x
更新日期:1996-07-01 00:00:00
abstract::The interdependence of the development of the eye and oculomotor system during embryogenesis is currently unclear. The occurrence of clinical anophthalmia, where the globe fails to develop, permits us to study the effects this has on the development of the complex neuromuscular system controlling eye movements. In thi...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523812000119
更新日期:2012-05-01 00:00:00
abstract::The abundance and spatial distribution of retinal cone photoreceptors change during thyroid hormone (TH)-induced and natural development of rainbow trout (Oncorhynchus mykiss). These changes are thought to allow the fish to adapt to different photic environments throughout its life history. To date, the ontogeny of ra...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523806232139
更新日期:2006-03-01 00:00:00
abstract::In previous experiments we established that a light flash reduced cGMP levels of toad rod outer segments within the transduction time interval, but that recovery of the dark level of cGMP occurred more slowly than reported electrophysiological recovery of membrane potential. We now report that a second light flash acc...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800003230
更新日期:1993-01-01 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
pub_type: 杂志文章
doi:10.1017/S0952523808080449
更新日期:2008-05-01 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
pub_type: 杂志文章
doi:10.1017/S0952523807070472
更新日期:2007-07-01 00:00:00
abstract::GABA is a major inhibitory neurotransmitter in the mammalian retina and it acts at many different sites via a variety of postsynaptic receptors. These include GABAA receptors and bicuculline-resistant GABAC receptors. The release of acetylcholine (ACh) is inhibited by GABA and strongly potentiated by GABA antagonists....
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800011652
更新日期:1997-09-01 00:00:00
abstract::The responses of neurons in primary visual cortex (V1) are suppressed by stimuli presented in the region surrounding the receptive field. There is debate as to whether this surround suppression is due to intracortical inhibition, is inherited from lateral geniculate nucleus (LGN), or is due to a combination of these f...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523807070563
更新日期:2007-09-01 00:00:00
abstract::The distribution of GABA-like immunoreactivity in the cat retina was studied through the use of preembedding immunocytochemistry for light microscopy and by postembedding immunogold techniques for electron microscopy. Staining was observed in both inner and outer plexiform layers. Approximately 30% of the somata in th...
journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800012323
更新日期:1989-01-01 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::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
pub_type: 杂志文章
doi:10.1017/S0952523819000129
更新日期:2020-02-12 00:00:00