Abstract：
:This paper examines the role of spatial frequency and orientation tuned channels in the perception of visual symmetry. Subjects discriminated between band-pass filtered, white noise textures that either did or did not contain vertical bilateral symmetry (VBS, i.e., around a vertical midline) as a function of the spatial phase disruption imposed on the images. Resistance to phase noise is largely scale-invariant for isotropically filtered images, but horizontally filtered images are consistently more noise-resistant than vertical. However, when stimuli are rotated through 90 deg (horizontal bilateral symmetry, HBS) performance is better with vertically filtered images suggesting a general advantage for orientations orthogonal to the axis of symmetry. At these orientations symmetry may be signaled directly by clusters of features along the axis. Our data further suggest that the established disadvantage for HBS may be attributable to an over-reliance on the output of horizontal filters. We compare models which exploit feature clustering around the axis by measuring the co-alignment in the output of oriented filters. Models using filters oriented orthogonal to the axis of symmetry predict the psychophysical performance for isotropic patterns and for patterns filtered orthogonal to the axis. For patterns filtered parallel to the axis, our data suggest that visual attention may play a role.
journal_name
Vision Resjournal_title
Vision researchauthors
Dakin SC,Hess RFdoi
10.1016/s0042-6989(97)00031-xsubject
Has Abstractpub_date
1997-10-01 00:00:00pages
2915-30issue
20eissn
0042-6989issn
1878-5646pii
S0042-6989(97)00031-Xjournal_volume
37pub_type
杂志文章相关文献
VISION RESEARCH文献大全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：:In adult golden hamsters (Mesocricetus auratus), the optic nerve was bilaterally sectioned with one side grafted with the sciatic nerve to make a bridge to the ipsilateral superior colliculus. Shuttle-box avoidance was tested using light as the conditioned stimulus. Three of the five transplanted animals revealed stat...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(93)90070-d
更新日期：1993-05-01 00:00:00
abstract：:The capacity to briefly memorize fleeting sensory information supports visual search and behavioral interactions with relevant stimuli in the environment. Traditionally, studies investigating the neural basis of visual short term memory (STM) have focused on the role of prefrontal cortex (PFC) in exerting executive co...
journal_title：Vision research
pub_type： 杂志文章,评审
doi：10.1016/j.visres.2016.09.010
更新日期：2016-11-01 00:00:00
abstract：:Edge detection is widely believed to be an important early stage in human visual processing. However, there have been relatively few attempts to map human edge detection filters. In this study, observers had to locate a randomly placed step edge in brown noise (the integral of white noise) with a 1/f2 power spectrum. ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2018.09.007
更新日期：2018-12-01 00:00:00
abstract：:A theory of retinal colour coding based closely on recent anatomical and physiological results is presented. Opponent colour channels are shown to be an inevitable result of any randomly distributed retinal cone mosaic, the structure of red-green opponent colour channels remaining uninfluenced by a predominance of "re...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(83)90128-1
更新日期：1983-01-01 00:00:00
abstract：:To examine how local velocities from different regions of the visual field combine to form a coherent motion percept, we subjected a sinusoidal line stimulus to translational motion. Horizontal movement of a sinewave line along its axial direction is perceived as nonrigid if the angle at the zero crossing is smaller t...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(88)90052-1
更新日期：1988-01-01 00:00:00
abstract：:In contrast to the classical findings of lightness constancy, recent psychophysical studies show the strong dependency of the perceived reflectance of a surface on the structure of the natural illumination. The present study examined this inconstancy for systematic variations in the light field and an image-based expl...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2011.11.010
更新日期：2012-01-15 00:00:00
abstract：:A coordinated movement of the eyes and head in the head-unrestrained condition is often used to change orientation between targets. Under natural conditions, these gaze shifts are typically generated with the eyes roughly centered in the orbits. To achieve experimental control of eye and head positions, a miniature la...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(01)00054-2
更新日期：2001-01-01 00:00:00
abstract：:A number of researchers have suggested that in order to understand the response properties of cells in the visual pathway, we must consider the statistical structure of the natural environment. In this paper, we focus on one aspect of that structure, namely, the correlational structure which is described by the amplit...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(97)00181-8
更新日期：1997-12-01 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 study of motion perception through classical psychophysical methods has suggested that independent spatiotemporal filters acting over specific locations in retinal images carry out early motion processing. On the other hand, individual differences approaches have been able to identify a structure of spatiotemporal...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2020.07.002
更新日期：2020-10-01 00:00:00
abstract：:A series of multiple regression analyses was conducted on a corpus of eye movement data to examine whether the influence of properties of words n-1 and n+1 on the time spent fixating word n changes as a function of whether word n is associated with a punctuation mark (i.e., whether or not a punctuation mark separates ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.12.006
更新日期：2007-04-01 00:00:00
abstract：:Vernier thresholds are known to be elevated when a target pair has opposite contrast polarity. Polarity reversal is used to assess the role of luminance and chromatic pathways in hyperacuity performance. Psychophysical hyperacuity thresholds were measured for pairs of gratings of various combinations of luminance (Lum...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2012.01.007
更新日期：2012-03-01 00:00:00
abstract：:The spectral sensitivity of single units in the torus semicircularis (TS) of small (< 30 g) and large (> 60 g) juvenile rainbow trout, Oncorhynchus mykiss, was investigated. All examined units (n = 39) showed inputs from the long and medium cone mechanisms. In addition, a majority of units (28 of 39) in both size grou...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(94)90140-6
更新日期：1994-06-01 00:00:00
abstract：:Wilson and Humanski (1993) have recently reported evidence that adapting to low temporal frequency sinewave gratings yields little threshold elevation for briefly presented test stimuli. We postulated that brief stimuli may be detected by a transient channel which would be minimally affected by a low temporal frequenc...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(94)00283-r
更新日期：1995-06-01 00:00:00
abstract：:Responses to 400 msec flashes of white light were recorded at various depths in the retina of the intact macaque eye. A statistical technique, principal component analysis (PCA), was used to isolate independent components from the LERG, using the changing contribution of a cell's response to the LERG with retinal dept...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(85)90176-2
更新日期：1985-01-01 00:00:00
abstract：:In Experiment 1 we investigated the independent and combined effects of horizontal OKN of stationary edges and occlusion of the central retina. For a display 60 degrees wide moving at 30 degrees/sec a symmetrically placed pair of vertical nonoccluding bars suppressed OKN when near the center of the display but had no ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(86)90049-0
更新日期：1986-01-01 00:00:00
abstract：:Previous studies have shown that attention to a particular stimulus feature, such as direction of motion or color, enhances neuronal responses to unattended stimuli sharing that feature. We studied this effect psychophysically by measuring the strength of the motion aftereffect (MAE) induced by an unattended stimulus ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.03.003
更新日期：2006-09-01 00:00:00
abstract：:In this study we describe a measurement method which closely approximates in vivo retinal thickness. Using this method we examined the laminar organisation of vascular and avascular retinae from placental and marsupial mammals. Thickness measurements on retinal wholemounts show that the avascular retinae of the placen...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(91)90110-q
更新日期：1991-01-01 00:00:00
abstract：:The classification behaviour of human observers with respect to compound Gabor signals is tested at foveal and extrafoveal retinal positions. Classification performance is analysed in terms of a probabilistic classification model recently proposed by Rentschler, Jüttner and Caelli [(1994) Vision Research, 34, 669-687]...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(95)00250-2
更新日期：1996-04-01 00:00:00
abstract：:Stimulus threshold and response latencies were measured for electrically elicited retinal ganglion cell responses in retina isolated from the eyes of normal and retinal degenerate (rd1) mice. Stimulation of the ganglion cell-side in normal retina yielded a significantly lower mean threshold and shorter latency when co...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.03.031
更新日期：2006-10-01 00:00:00
abstract：:Previous studies [e.g. Vision Research 40 (2000) 173] have shown that when observers are required to selectively attend to one of two, spatially-adjacent patches containing either first-order (luminance-defined) or second-order (contrast-defined) motion, threshold sensitivity for identifying the direction of second-or...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2003.07.005
更新日期：2003-12-01 00:00:00
abstract：:To understand the regulatory mechanisms governing glucocorticoid-mediated MYOC induction in human trabecular meshwork (HTM) cells, the expression and degradation of MYOC mRNA were quantified in HTM cells by Northern blot analysis, and the transcriptional activity of constructs containing variable lengths of putative M...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2011.02.014
更新日期：2011-05-11 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：:The regularities in very young infants' visual worlds likely have out-sized effects on the development of the visual system because they comprise the first-in experience that tunes, maintains, and specifies the neural substrate from low-level to higher-level representations and therefore constitute the starting point ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2018.05.005
更新日期：2019-04-01 00:00:00
abstract：:Contours are believed to play a key role in the visual analysis of scenes by the primate brain. In dynamic scenes, the presence of contours is often signaled by discontinuities in motion fields. However, it is unclear whether the motion fields over which the visual system extracts discontinuities, correspond to the lo...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(00)00306-0
更新日期：2001-03-01 00:00:00
abstract：:By inducing feature-contingent depth aftereffects, we show that the human visual system combines feature information with depth information. These contingent aftereffects were revealed through the use of a novel selective adaptation paradigm whose stimuli required the combination of feature and depth information in or...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(01)00294-2
更新日期：2002-02-01 00:00:00
abstract：:Spatial cueing of transient attention has recently been shown to reduce temporal sensitivity. We investigated how the size of the sustained attentional focus influences double-pulse resolution (DPR) thresholds mapped across the visual field in a sample of 95 healthy subjects using a 9-fold interleaved adaptive algorit...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.03.018
更新日期：2006-09-01 00:00:00
abstract：:The purpose of this study was to investigate the roles of the putative "spatial filter" and "local sign" mechanisms in determining line vernier thresholds for a range of target separations, using stimulus contrast or visibility as a tool. In Expt 1, the effects of varying target contrast and exposure duration on verni...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(93)90257-w
更新日期：1993-03-01 00:00:00
abstract：:The aim of the study was to determine the age-dependence of the accommodative force on the lens in order to make it clear whether the causes of presbyopia are due to lenticular or extralenticular changes. A finite element model of the lens of an 11-, 29- and 45-year-old human eye was constructed to represent the fully...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2007.10.017
更新日期：2008-01-01 00:00:00
