Abstract:
:Binocular rivalry properties for contrast-modulated (CM) gratings were examined to gain insight into their locus of processing. Two orthogonally orientated gratings were presented, one to each eye. Perceptual change rates, proportions of exclusivity and mixed percepts, and mean durations were calculated. Stimuli were noiseless luminance-defined (L), luminance-modulated noise (LM) and contrast-modulated noise (CM) gratings with sizes of 1, 2 and 4deg and spatial frequencies of 4, 2 and 1c/deg, respectively. For the LM and CM gratings, binary noise was fully correlated between eyes. Maximum producible modulations were used (1.0 for CM, 0.78 for LM and 0.98 for L stimuli). In a control experiment, contrasts of LM gratings were reduced until the multiples over detection threshold were similar to those of CM stimuli. Trial durations of 120s were analyzed. Exclusive visibility decreased with increasing stimulus size regardless of the stimulus type. Even with visibilities at similar multiples above detection threshold, significantly lower proportions of exclusive percepts and perceptual changes were found for CM, compared to LM gratings. The results obtained with dichoptically presented orthogonal CM gratings are significantly different from those obtained for orthogonal gratings presented to one eye. CM stimuli therefore do engage in binocular rivalry but with different characteristics to those found for LM stimuli. These results suggest that CM stimuli are processed by a mechanism that promotes binocular combination rather than rivalry, and therefore may involve cells in a higher visual area than those that initially process LM information.
journal_name
Vision Resjournal_title
Vision researchauthors
Skerswetat J,Formankiewicz MA,Waugh SJdoi
10.1016/j.visres.2016.01.002subject
Has Abstractpub_date
2016-04-01 00:00:00pages
10-22eissn
0042-6989issn
1878-5646pii
S0042-6989(16)00014-6journal_volume
121pub_type
杂志文章相关文献
VISION RESEARCH文献大全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
pub_type: 杂志文章
doi:10.1016/j.visres.2009.04.028
更新日期:2009-07-01 00:00:00
abstract::In the present study, discrete trial familiarization/novelty techniques were used to study lightness constancy in 4-month-old infants. The test stimuli were real objects (paper smiley faces) of two different reflectances, dark gray (17% reflectance) and light gray (54% reflectance). In Experiment 1, the test stimuli w...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2005.11.027
更新日期:2006-06-01 00:00:00
abstract::A variable pupil generally regulates the amount of incoming light available for image formation on the retina. However, some of the semi-aquatic snakes (North American Gartersnakes, Thamnophis) that forage in relatively low light conditions reduce the pupil aperture in response to submergence underwater at the expense...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2008.01.006
更新日期:2008-07-01 00:00:00
abstract::Subjects observed a random dot pattern that moved horizontally with modulated velocity within an invisible aperture. The velocity contrast, (V2-V1)/V1, was 2/3. Two different percepts occurred while observing this stimulus. At lower modulation frequencies, between 2 and 12 Hz, velocity changes were clearly seen; this ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(96)00037-5
更新日期:1996-09-01 00:00:00
abstract::On different chromatic adapting fields, thresholds were measured with a 1.2 deg flash consisting of simultaneous incremental and decremental red and green components that stimulate the M and L cones in any desired ratio. Thresholds were plotted in normalized coordinates in which the quantal change in the M and L cones...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(85)90116-6
更新日期:1985-01-01 00:00:00
abstract::Experiments were performed to evaluate the spatial summation areas of the u.v.-, blue-, green- and red-sensitive cone mechanisms of goldfish. All the cone mechanisms were in compliance of Ricco's law, summing target radiance linearly over a certain range of target diameters with an average slope of 2.4. The critical d...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(91)90106-f
更新日期:1991-01-01 00:00:00
abstract::the foveal vision of certain patients afflicted with retinitis pigmentosa may be mediated solely by a long wavelength sensitivity (lws) mechanism, because (1) increment threshold data could always be fitted to a single template curve with unity slope, (2) test and field sensitivities differ only by a proportionality c...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(82)90178-x
更新日期:1982-01-01 00:00:00
abstract::Electrophysiological recording demonstrated that visuo-tectal projections are topographically organised after optic nerve regeneration in aged Xenopus laevis. 3H-thymidine autoradiography confirmed previous reports [Taylor, Lack, & Easter, Eur. Journal of Neuroscience 1 (1989) 626-638] that cell division had already c...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(01)00053-0
更新日期:2001-06-01 00:00:00
abstract::There are encouraging advances in prosthetic vision for the blind, including retinal and cortical implants, and other "sensory substitution devices" that use tactile or electrical stimulation. However, they all have low resolution, limited visual field, and can display only few gray levels (limited dynamic range), sev...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2014.10.023
更新日期:2015-06-01 00:00:00
abstract::We set out to determine whether extra-striate ventral stream function was compromised in amblyopia and to compare any observed deficit with previous data on comparable dorsal stream function. We devised a multi-element orientation task where orientation coherence sensitivity could be measured in a comparable way to mo...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2013.02.005
更新日期:2013-04-19 00:00:00
abstract::A new discrete-time reverse-correlation scheme for the study of visual neurons is proposed. The visual stimulus is generated by drawing with uniform probability, at each refresh time, an image from a finite set S of orthonormal images. We show that if the neuron can be modeled as a spatiotemporal linear filter followe...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(96)00247-7
更新日期:1997-09-01 00:00:00
abstract::We consider how local motion signals are combined to represent the movements of spatially extensive objects. A series of band-pass target dots, whose collective motion defined a moving contour, was positioned within a field of randomly moving noise dots. The visibility of the contours did not depend on the direction o...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(03)00329-8
更新日期:2003-09-01 00:00:00
abstract::This paper reports an improved paradigm to measure visible persistence. The stimulus is a pair of lines stroboscopically displayed in successive positions moving in opposite directions. The subjects' judgement of simultaneous appearance of all the presented lines is used to estimate visible persistence. This paradigm ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(90)90058-s
更新日期:1990-01-01 00:00:00
abstract::To determine the physical size and global three-dimensional (3-D) shape of an object, retinal size and retinal disparity have to be scaled in accordance with the object's distance. We examined whether the distance used for scaling retinal disparity is the same as the distance used for scaling retinal size. Subjects ad...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(96)00213-1
更新日期:1997-03-01 00:00:00
abstract::Light and darkness promote opposite migrations of screening pigment granules in the retinal photoreceptors of the crayfish and other arthropods, and microtubules have been implicated in this part of the adaptation process. This report considers the topographic relationships of the migratory pigment granules with the m...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(82)90217-6
更新日期:1982-01-01 00:00:00
abstract::The influence of binocular disparate targets on the perceived visual direction of adjacent monocular targets has been termed "binocular capture". The magnitude of capture increases significantly with increasing vertical separation between monocular targets. This study sets out to elucidate the interaction between spat...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2011.09.011
更新日期:2011-12-08 00:00:00
abstract::We had the rare opportunity to examine a patient with a unilateral complete ophthalmoplegia in an eye with normal visual acuity. We recorded the movements of the covered, sound eye of the patient during full-field optokinetic stimulation of his seeing, immobile eye (open loop condition). The open loop gain for low vel...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(82)90084-0
更新日期:1982-01-01 00:00:00
abstract::We have found evidence for ultraviolet visual capabilities in a Lake Malawi cichlid fish, Metriaclima zebra. Microspectrophotometry of single cones revealed a visual pigment with peak sensitivity at 368+/-4 nm. M. zebra also expresses a putative ultraviolet opsin gene whose sequence is closely related to the SWS-1 ops...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(99)00238-2
更新日期:2000-01-01 00:00:00
abstract::A pincushion formed by four arcs on a gray background looks darker when the arcs are black, and lighter when the arcs are white. Yet, a matching-experiment shows that this difference is relative. Whereas the apparently darker pincushion requires a matching luminance that is lower than the background luminance (i.e. as...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(95)98721-k
更新日期:1995-05-01 00:00:00
abstract::Different scenes contain varying cues to the direction of gravity. Do scenes with stronger cues differentially affect the ability of a scene to influence the direction of the Subjective Visual Vertical (SVV) and the Perceptual Upright (PU)? Using indoor, outdoor, natural and man-made scenes we asked participants to ju...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2010.05.027
更新日期:2010-08-06 00:00:00
abstract::The changes with age in the accommodation responses to dynamic stimuli can reveal useful information on the factors underlying presbyopia development. Analysis of the monocular accommodation responses of 19 normal observers (ages 18-49 years) to stimuli whose vergence varied sinusoidally with time at different tempora...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2004.07.016
更新日期:2004-12-01 00:00:00
abstract::We present a two-frequency method to investigate lateral interaction components (liERGs) in the human electroretinogram. Adjacent half cycles of sinusoidal gratings were modulated sinusoidally with different temporal frequencies f1 and f2. The liERGs were defined by the Fourier components at the intermodulation freque...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2005.06.025
更新日期:2005-10-01 00:00:00
abstract::The stereoacuity of the pigeon was measured by finding the smallest depth difference discriminable between two arrays of elements, each array confined to one of two parallel planes in space. For both the human and the pigeon, the depth between the two planes was not discriminable under stationary monocular conditions....
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(87)90061-7
更新日期:1987-01-01 00:00:00
abstract::The present investigation is aimed at characterizing the development of ON and OFF visually evoked responses in the rat superior colliculus from postnatal day 13 (P13) to postnatal day 25. Depth profiles of field potentials reveal that ON and OFF long latency biphasic field potentials are already present when collicul...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(97)00145-4
更新日期:1997-11-01 00:00:00
abstract::Landing flights of pigeons were video recorded or filmed, and frame-by-frame measurements were made of the angle of the head relative to the horizontal, and of the position of the perch in the visual field. The angle of the head increases above that seen in free flight, to a value which is correlated with the trajecto...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(92)90087-y
更新日期:1992-12-01 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
pub_type: 杂志文章
doi:10.1016/j.visres.2005.12.015
更新日期:2006-06-01 00:00:00
abstract::During dark adaptation after full field, greater than or equal to 90% bleaches recovery of sensitivity and regeneration of rhodopsin were studied using electroretinographic and pupillographic techniques in both 10-week-old infants and adults. The courses of scotopic sensitivity recovery and rhodopsin regeneration of i...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(87)90066-6
更新日期:1987-01-01 00:00:00
abstract::The capacity of 1- and 2-month-old infants to make a tritan discrimination between a 4 degree, 416 nm test field and a 547 nm surround was tested by means of the forced-choice preferential looking technique. Most of the 2-month-olds and the other 1-month-olds made the tritan discrimination and must therefore have func...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(85)90190-7
更新日期:1985-01-01 00:00:00
abstract::A panel of anti-bovine rhodopsin monoclonal antibodies (MAbs) of defined site-specificity has been prepared and used for functional and topographic studies of rhodopsins. In order to select these antibodies, hybridoma supernatants that contained anti-rhodopsin antibodies have been screened by enzyme-linked immunosorbe...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(91)90069-h
更新日期:1991-01-01 00:00:00
abstract::We determined the effect upon accommodative responses of tinted lenses prescribed for the relief of visual discomfort in a group of five long term lens wearers. Static and dynamic responses were measured under four viewing conditions (1) prescribed tinted lens (2) neutral density filter (3) tinted lens of complementar...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(00)00291-1
更新日期:2001-04-01 00:00:00