Abstract：
:Human observers show remarkable efficiency in statistical estimation; they are able, for instance, to estimate the mean size of visual objects, even if their number exceeds the capacity limits of focused attention. This ability has been understood as the result of a distinct mode of attention, i.e. distributed attention. Compared to the focused attention mode, working memory representations under distributed attention are proposed to be more compressed, leading to reduced working memory loads. An alternate proposal is that distributed attention uses less structured, feature-level representations. These would fill up working memory (WM) more, even when target set size is low. Using event-related potentials, we compared WM loading in a typical distributed attention task (mean size estimation) to that in a corresponding focused attention task (object recognition), using a measure called contralateral delay activity (CDA). Participants performed both tasks on 2, 4, or 8 different-sized target disks. In the recognition task, CDA amplitude increased with set size; notably, however, in the mean estimation task the CDA amplitude was high regardless of set size. In particular for set-size 2, the amplitude was higher in the mean estimation task than in the recognition task. The result showed that the task involves full WM loading even with a low target set size. This suggests that in the distributed attention mode, representations are not compressed, but rather less structured than under focused attention conditions.
journal_name
Vision Resjournal_title
Vision researchauthors
Baijal S,Nakatani C,van Leeuwen C,Srinivasan Ndoi
10.1016/j.visres.2012.09.018subject
Has Abstractpub_date
2013-06-07 00:00:00pages
20-5eissn
0042-6989issn
1878-5646pii
S0042-6989(12)00309-4journal_volume
85pub_type
杂志文章相关文献
VISION RESEARCH文献大全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：:The integration of spatially distinct elements into coherent objects is a fundamental process of vision. Yet notwithstanding an extensive literature on perceptual grouping, we still lack a clear understanding of the representational consequences of grouping disparate visual locations. We investigated this question in ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2009.08.014
更新日期：2009-11-01 00:00:00
abstract：:The red, green, yellow, and blue curve portions of chromatic valence functions (CVFs) were measured by an iso-cancellation technique using three or four different chromatic standards (cancellation stimuli of fixed intensity and chromaticity) for each of the four curve portions. Curve shapes of the red, green, and yell...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(89)90070-9
更新日期：1989-01-01 00:00:00
abstract：:We investigate the influence of biased feedback on decision and learning processes in a vernier discrimination task. Subjects adjust their decision criteria and hence their responses according to biased external feedback. However, they do not use learning processes to encode incorrectly classified stimuli. As soon as ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(99)00138-8
更新日期：1999-01-01 00:00:00
abstract：:A visual transient due to a sudden visual change is generally considered to draw our attention to a location of interest. In a series of experiments we investigated how visual transients facilitate change detection in a scene. In line with earlier reports, we found that a transient sensation has its roots in a tempora...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2004.04.005
更新日期：2004-01-01 00:00:00
abstract：:The change in sensitivity across some stimulus dimension which follows adaptation to a particular stimulus can reveal a great deal about the tuning characteristics of underlying sensory/perceptual mechanisms. In this study, a psychophysical adaptation paradigm was employed to characterize the disparity tuning of perce...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(92)90161-b
更新日期：1992-09-01 00:00:00
abstract：:The squirrel monkey lacks anatomically demonstrable ocular dominance columns, and physiologically it has an ocular dominance distribution in V1 that is very different from that of macaques, with far fewer cells that strongly favor one eye over the other. We tested an alert squirrel monkey for physiological responses t...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(94)00133-7
更新日期：1995-02-01 00:00:00
abstract：:Techniques that involve the use of comb-filtered spectra to study human colour vision have been developed in previous work (Bonnardel, V., Bellemare, H., Mollon, J.D., 1996. Measurements of human sensitivity to comb-filtered spectra, Vision Research 36, 2713-2720; Bonnardel, V., Ruderman D.L., Barlow, H.B., 1997. A fa...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(00)00278-9
更新日期：2001-03-01 00:00:00
abstract：:Color appearance can be studied using either Maxwellian-view optical systems or natural viewing (Newtonian-view). We show that the results are not precisely comparable when the natural pupil is appreciably larger than the entrance pupil of the Maxwellian beam. The wavelength for any given hue that is obtained from one...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2008.06.004
更新日期：2008-08-01 00:00:00
abstract：:This brief review article brings together a series of related experiments in psychophysics and physiology that show striking similarities between measurements in human observers and in single neurons. We consider seven pairs of primary research articles, each pair consisting of one paper in physiology and one in psych...
journal_title：Vision research
pub_type： 杂志文章,评审
doi：10.1016/j.visres.2006.02.002
更新日期：2006-08-01 00:00:00
abstract：:The Bezold-Brücke phenomenon was measured during the cone-plateau period of the long-term dark-adaptation curve at 25 degrees, 40 degrees and 60 degrees in the nasal field of view, and at 40 degrees and 70 degrees in the temporal field. In striking contrast to previous measurements of the B-B phenomenon the present re...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(82)90018-9
更新日期：1982-01-01 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 responses of neurons in primary visual cortex (V1) to stimulation of their receptive field (RF) are modulated by stimuli in the RF surround. This modulation is suppressive when the stimuli in the RF and surround are of similar orientation, but less suppressive or facilitatory when they are cross-oriented. Similarl...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2014.08.018
更新日期：2014-11-01 00:00:00
abstract：:As a mechanism to detect differential motion, we have proposed a model of 'a motion contrast detector' and have shown that it can explain the perceptual change from motion capture to induced motion with increasing stimulus size and decreasing eccentricity. To further test the feasibility of the model, we examined the ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(94)00269-r
更新日期：1995-07-01 00:00:00
abstract：:The spatial characteristics of the changes in retinal correspondence produced by forced convergence were studied. The vertical extent of lateral shifts in binocular correspondence were quantified by comparing the convergence of the eyes measured with binocular search coils to the convergence of the eyes as determined ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(97)00448-3
更新日期：1998-09-01 00:00:00
abstract：:The study examines age-dependent changes of kynurenic acid (KYNA) content and kynurenine aminotransferases (KAT I and KAT II) celluar expression in the retinas of DBA/2J mice. Retinas were obtained from DBA/2J mice of different ages (3, 6 and 11 months). C57BL6 mice were used as controls. As measured with HPLC, KYNA c...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2003.11.003
更新日期：2004-03-01 00:00:00
abstract：:The contrast transducer function (d' vs. contrast) for sine gratings was claimed to come up from some non-zero contrast value rather than from the origin. This implies that there is a point (a hard threshold) on the grating contrast axis below which observers could not distinguish between presentations containing grat...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2003.09.015
更新日期：2004-02-01 00:00:00
abstract：:In searching for the target-afterimage patch among spatially separate alternatives of color-afterimages the target fades from awareness before its competitors (Bachmann, T., & Murd, C. (2010). Covert spatial attention in search for the location of a color-afterimage patch speeds up its decay from awareness: Introducin...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2011.03.008
更新日期：2011-05-25 00:00:00
abstract：:Perception of short-range motion was studied as a function of adapting luminance and of stimulus contrast in computer simulations and in psychophysical experiments. The stimuli were random dots plotted on an oscilloscope in two sequential frames, separated by an inter-stimulus interval (ISI). Both in the simulations a...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(90)90083-w
更新日期：1990-01-01 00:00:00
abstract：:Perceived contrast, contrast detection thresholds and contrast discrimination thresholds were measured in the presence and absence of surrounding patterns of a similar spatio-temporal makeup. In the foveal retina we found that the perceived contrast of the central pattern was reduced by the presence of the contrast su...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(97)00379-9
更新日期：1998-06-01 00:00:00
abstract：:Humans are very sensitive to the presence of other living persons or animals in their surrounding. Human actions can readily be perceived, even in a noisy environment. We recently demonstrated that biological motion, which schematically represents human motion, influences smooth pursuit eye movements during the initia...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2010.08.009
更新日期：2010-12-01 00:00:00
abstract：:Shape representation is accomplished by a series of cortical stages in which cells in the first stage (V1) have local receptive fields tuned to contrast at a particular scale and orientation, each well modeled as a Gabor filter. In succeeding stages, the representation becomes largely invariant to Gabor coding (Kobata...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2011.12.012
更新日期：2012-02-15 00:00:00
abstract：:The spatial vision of two adult galagos (Galago crassicaudatus) was assessed using a two choice discrimination task to determine their contrast sensitivity. Both contrast sensitivity functions exhibited low and high spatial frequency attenuation with the peak sensitivity at 1%. For one animal, the peak occurred at 0.5...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/0042-6989(86)90094-5
更新日期：1986-01-01 00:00:00
abstract：:When a horizontal bar is presented after a single dot is shown at one of its ends, an illusory motion is seen which has been dubbed "motion induction" in the literature. The phenomenon has been attributed to a facilitation process which asymmetrically modulates the inputs to motion detectors, for instance by some sort...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(97)00004-7
更新日期：1997-07-01 00:00:00
abstract：:Linking propositions are statements that relate perceptual states to physiological states, and as such are one of the fundamental building blocks of visual science. A brief history of the concept of linking proposition is presented. Five general families of linking propositions--Identity, Similarity, Mutual Exclusivit...
journal_title：Vision research
pub_type： 历史文章,杂志文章
doi：10.1016/0042-6989(84)90178-0
更新日期：1984-01-01 00:00:00
abstract：:Subjects were given reflexive- and voluntary-saccade tasks using five different gap intervals (0-500 ms) between the fixation point offset and the target onset and an overlap paradigm (i.e., the fixation point remained on during the target presentation). In the first experiment, targets were monocularly presented, and...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(02)00050-0
更新日期：2002-05-01 00:00:00
abstract：:Sand deserts are common biotopes on the earth's surface. Some specialized vertebrate species have colonized these ecological habitats by living buried in the sand. Among these so called psammophilic species are the Scincidae sand dune living species Scincus scincus and Eumeces schneideri. These two skinks share a rela...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2020.04.004
更新日期：2020-04-28 00:00:00
abstract：:Several studies have shown that the perceived position of a briefly presented stimulus can be displaced by nearby motion or by eye movements. We examined whether attentive tracking can also modulate the perceived position of flashed static objects when eye movements and low-level motion are controlled. Observers atten...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2005.05.029
更新日期：2005-11-01 00:00:00
abstract：:Are surfaces' colours judged from weighted averages of the light that they reflect to the eyes and the colour contrast at their borders? To find out we asked subjects to set the colour and luminance of test disks to match reference disks, on various backgrounds, and analysed the variability in their settings. Most of ...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/j.visres.2006.09.022
更新日期：2007-01-01 00:00:00
abstract：:Peripheral resolution acuity for achromatic gratings is known to be limited by the density of the underlying ganglion cell sampling array. After confirming isolation of the short-wavelength sensitive (SWS) system using chromatic adaptation methods, we wished to determine if resolution is limited by blue/yellow ganglio...
journal_title：Vision research
pub_type： 杂志文章
doi：10.1016/s0042-6989(02)00013-5
更新日期：2002-04-01 00:00:00
