Abstract:
:Colorimetric purity, measured as the first step from white toward the spectrum has a V-shaped function. Purity discrimination is best near 400 nm, least at 570 nm and intermediate at mid-spectrum and long wavelengths. A much flatter function occurs when colorimetric purity is measured as the first step from the spectrum toward white. In this study, we applied the formulation of chromatic discrimination thresholds measured along the S-cone and M/L-cone axis to account for chromatic discrimination in the equiluminant plane. The modeling results show that the purity step from white has a 1.6 log unit calculated range, similar to the classical data. The purity step from the spectrum is much flatter. The predicted range is dependent on the individual variance in chromatic discrimination thresholds and the luminance level. We then used psychophysical procedures to test the model's predictions. The resulting purity discrimination functions were generally in agreement with the model. Our modeling indicates that discrepant data of colorimetric purity can be explained with the context of discrimination models.
journal_name
Vision Resjournal_title
Vision researchauthors
Yeh T,Smith VC,Pokorny Jdoi
10.1016/0042-6989(93)90175-vsubject
Has Abstractpub_date
1993-09-01 00:00:00pages
1847-57issue
13eissn
0042-6989issn
1878-5646pii
0042-6989(93)90175-Vjournal_volume
33pub_type
杂志文章相关文献
VISION RESEARCH文献大全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::Visual search is a fundamental and routine task of everyday life. Studying visual search promises to shed light on the basic attentional mechanisms that facilitate visual processing. To investigate visual attention during search processes, numerous studies measured the selectivity of observers' saccadic eye movements ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2005.12.003
更新日期:2006-06-01 00:00:00
abstract::Most humans seem to demonstrate astonishingly high levels of skill in face processing if one considers the sophisticated level of fine-tuned discrimination that face recognition requires. However, numerous studies now indicate that the ability to process faces is not as fundamental as once thought and that performance...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2016.07.007
更新日期:2016-10-01 00:00:00
abstract::The current study aims at analysing the suitability of the double-pass technique in measuring the accommodative response. A custom-built setup which allowed simultaneous double-pass and Hartmann-Shack measurements was used. Several metrics to assess the accommodative response were tested and compared. In order to vali...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2012.03.021
更新日期:2012-06-01 00:00:00
abstract::This article describes a nonlinear model of neural processing in the vertebrate retina, comprising model photoreceptors, model push-pull bipolar cells, and model ganglion cells. Previous analyses and simulations have shown that with a choice of parameters that mimics beta cells, the model exhibits X-like linear spatia...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(94)90131-7
更新日期:1994-07-01 00:00:00
abstract::Western blot analysis of 100,000 g supernatant of rat retina using a polyclonal anti-Ca2+/ calmodulin-dependent protein kinase IV (CaM-kinase IV) antibody revealed an immunoreactive mass of 35 kDa, termed reticalmin. Lower amount of a isoform of CaM-kinase IV was also expressed in rat retina. Reticalmin did not react ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(97)00175-2
更新日期:1997-08-01 00:00:00
abstract::Previous studies have indicated that peripheral resolution for achromatic gratings is sampling limited and directly related to the density of the underlying midget ganglion cell population. Previous studies by the authors have shown that peripheral resolution for blue-cone isolating gratings is also sampling limited, ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(02)00411-x
更新日期:2003-01-01 00:00:00
abstract::Contour interpolation is the process whereby spatially separated object fragments (inducers) are connected on the basis of their contour relations. An important characteristic of interpolation between simultaneously presented inducers is that observers rely on interpolation regions to perform a discrimination task. Ho...
journal_title:Vision research
pub_type: 临床试验,杂志文章
doi:10.1016/j.visres.2007.10.003
更新日期:2007-12-01 00:00:00
abstract::We compared ocular and eye-head tracking responses to an illusion of diagonal motion produced when vertical movement of a small visual target was synchronized to horizontal movement of a background display. In response to sinusoidal movement, smooth ocular pursuit followed vertical target motion, with only a small hor...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(95)00067-a
更新日期:1995-11-01 00:00:00
abstract::Inhibition-of-return is the process by which visual search for an object positioned among others is biased toward novel rather than previously inspected items. It is thought to occur automatically and to increase search efficiency. We examined this phenomenon by studying the facilitative and inhibitory effects of loca...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(00)00085-7
更新日期:2000-01-01 00:00:00
abstract::It has been shown that the perceived direction of a plaid with components of unequal contrast is biased towards the direction of the higher-contrast component [Stone, L. S., Watson, A. B., & Mulligan, J. B. (1990). Effect of contrast on the perceived direction of a moving plaid. Vision Research 30, 1049-1067]. It was ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2006.10.017
更新日期:2007-02-01 00:00:00
abstract::We present a novel binocular stimulus without conventional disparity cues whose presence and depth are revealed by sequential monocular stimulation (delay > or = 80 ms). Vertical white lines were occluded as they passed behind an otherwise camouflaged black rectangular target. The location (and instant) of the occlusi...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2005.06.015
更新日期:2006-03-01 00:00:00
abstract::We compared a human observer's ability to locate the focus of expansion (FOE) of a radial optic flow field when this flow field was either combined with, or overlapped by, planar motion. With combined stimuli, in which the FOE was displaced in the direction opposite to the planar motion, subjects accurately located th...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(93)90141-i
更新日期:1993-07-01 00:00:00
abstract::Studies of high-level models of visual object categorization have left unresolved issues of neurobiological relevance, including how features are extracted from the image and the role played by memory capacity in categorization performance. We compared the ability of a comprehensive set of models to match the categori...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(03)00279-7
更新日期:2003-09-01 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::This investigation examined the onset response of the transient visually evoked potential elicited by the appearance-disappearance of sine-wave gratings at various levels of spatial frequency, suprathreshold contrast, and stimulus duration. The response was most easily characterized by two negative-positive complexes ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(84)90083-x
更新日期:1984-01-01 00:00:00
abstract::The effects of monocular deprivation (MD) on the crossed and uncrossed visual projections were studied using both electrophysiological and behavioural criteria. Our results show that Visual Evoked Potentials (VEPs) from the deprived eye (DE) in response to contrast reversing gratings are more reduced in the ipsilatera...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(86)90145-8
更新日期:1986-01-01 00:00:00
abstract::One cannot detect a white disk located at least 15 degrees from fixation in an intersection of gray alleys that define a grid of black squares. A psychophysical examination of the anatomical locus of this "blanking phenomenon" is reported here. Stimuli were presented dichoptically; disk threshold was measured with fix...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2004.08.003
更新日期:2005-01-01 00:00:00
abstract::The properties of impulse responses of blowfly photoreceptors in light and dark adaptation were studied with brief (30 mu sec) white light flashes applied with different repetition frequencies, thereby producing a range of interstimulus periods (ISPs) from 200 msec to 100 sec. The amplitude of the impulse response as ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(89)90187-9
更新日期:1989-01-01 00:00:00
abstract::Vestibulo-ocular reflex (VOR)-optokinetic reflex (OKR) interaction was studied in normal human subjects during active sine-like head movements in the horizontal plane for a variety of vestibular-optokinetic stimulus combinations (frequency range, 0.05-1.6 Hz). At low to mid frequencies (< 0.2 Hz) the eyes tended to be...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(96)00315-x
更新日期:1997-06-01 00:00:00
abstract::Extra-retinal information about eye velocity is thought to play an important role in compensating the retinal motion experienced during an eye movement. Evidently this compensation process is prone to error, since stimulus properties such as contrast and spatial frequency have marked effect on perceived motion with re...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(03)00254-2
更新日期:2003-07-01 00:00:00
abstract::Which visual channel detects high spatial frequencies during careful fixation? Color vision models based on psychophysical data contradict electrophysiological results. According to electrophysiology, the channel which mediates foveal acuity originates in the small, tonic color-opponent r-g units of the X-cell pathway...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/0042-6989(83)90161-x
更新日期:1983-01-01 00:00:00
abstract::We present a remarkably simple illusion that manifests whenever a certain class of flat static patterns are moved across our peripheral visual field. A relative motion is perceived in a direction perpendicular to the true motion. Translatory, looming, and rotational movements of the head or the pattern can all elicit ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(00)00072-9
更新日期:2000-01-01 00:00:00
abstract::Recently, psychophysical studies have shown that humans with amblyopia do have binocular function that is not normally revealed due to dominant suppressive interactions under normal viewing conditions. Here we use magnetoencephalography (MEG) combined with dichoptic visual stimulation to investigate the underlying bin...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2017.07.014
更新日期:2017-11-01 00:00:00
abstract::Bisection is one of several spatial localization tasks that achieve hyperacuity performance levels. We find that optimal bisection thresholds, and hyperacuity tasks in general, are no better than might be expected from simple contrast detection and discrimination performance. The three-line bisection task can be descr...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(98)00121-7
更新日期:1999-02-01 00:00:00
abstract::This study compared color appearance data for two populations of middle-aged women: (1) women using the selective estrogen receptor modulator tamoxifen as adjuvant therapy following successful treatment for early-stage breast cancer, and (2) healthy amenorrheic (peri- or post-menopausal) control subjects not using any...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2005.11.003
更新日期:2006-05-01 00:00:00
abstract::Normal subjects were first light adapted to a standard photopic background and a control photopic ERG was obtained. The subjects were then light adapted to a brighter background for 5 min at the end of which the luminance was returned to the control background and ERGs were taken at regular intervals. Most of the ERG/...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(99)00245-x
更新日期:2000-01-01 00:00:00
abstract::When a visual stimulus is displaced during a saccade the displacement is often not noticed unless it is large compared to the amplitude of the eye movement. Displacement detection is improved, however, if a blank intervenes between saccade target offset and the presentation of the displaced post-saccadic stimulus. Thi...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2017.09.004
更新日期:2018-01-01 00:00:00
abstract::We explored perceptual factors that might account for the other-race classification advantage (ORCA) in classifying faces by race. Testing Chinese participants in China and Israeli participants in Israel we show that: (a) The distinction between Chinese and Israeli faces is highly accurate even on the basis of isolate...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/j.visres.2011.10.001
更新日期:2011-12-08 00:00:00
abstract::Velocity matching using the method of Constant Stimuli shows that perceived velocity varies with contrast [Thompson, P. (1982). Perceived rate of movement depends upon contrast. Vision Research, 22, 377-380]. Random contrast jitter would therefore be expected to increase the slopes of psychometric functions, and thus ...
journal_title:Vision research
pub_type: 杂志文章
doi:10.1016/s0042-6989(99)00103-0
更新日期:1999-11-01 00:00:00