Abstract:
:In the barber-pole illusion (BPI), a diagonally moving grating is perceived as moving vertically because of the shape of the vertically oriented window through which it is viewed-a strong shape-motion interaction. We introduce a novel stimulus-the moving barber pole-in which a diagonal, drifting sinusoidal carrier is windowed by a raised, vertical, drifting sinusoidal modulator that moves independently of the carrier. In foveal vision, the moving-barber-pole stimulus can be perceived as several active barber poles drifting horizontally but also as other complex dynamic patterns. In peripheral vision, pure vertical motion (the moving-barber-pole illusion [MBPI]) is perceived for a wide range of conditions. In foveal vision, the MBPI is observed, but only when the higher-order modulator motion is masked. Theories to explain the BPI make indiscriminable predictions in a standard barber-pole display. But, in moving-barber-pole stimuli, the motion directions of features (e.g., end stops) of the first-order carrier and of the higher-order modulator are all different from the MBPI. High temporal frequency stimuli viewed peripherally greatly reduce the effectiveness of higher-order motion mechanisms and, ideally, isolate a single mechanism responsible for the MBPI. A three-stage motion-path integration mechanism that (a) computes local motion energies, (b) integrates them for a limited time period along various spatial paths, and (c) selects the path with the greatest motion energy, quantitatively accounts for these high-frequency data. The MBPI model also accounts for the perceived motion-direction in peripherally viewed moving-barber-pole stimuli that do and do not exhibit the MBPI over the entire range of modulator (0-10 Hz) and carrier (2.5-10 Hz) temporal frequencies tested.
journal_name
J Visjournal_title
Journal of visionauthors
Sun P,Chubb C,Sperling Gdoi
10.1167/14.5.1subject
Has Abstractpub_date
2014-05-01 00:00:00pages
1issue
5issn
1534-7362pii
14.5.1journal_volume
14pub_type
杂志文章abstract::Visual search is slowed for cast shadows lit from above, as compared to the same search items inverted and so not interpreted as shadows (R. A. Rensink & P. Cavanagh, 2004). The underlying mechanisms for such impaired shadow processing are still not understood. Here we investigated the processing levels at which this ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.3.13
更新日期:2010-03-29 00:00:00
abstract::Accommodation and vergence help maintain single and focused visual experience while an object moves in depth. The relative importance of retinal blur and disparity, the primary sensory cues to accommodation and vergence, is largely unknown during development; a period when growth of the eye and head necessitate contin...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/8.16.14
更新日期:2008-12-22 00:00:00
abstract::In the peripheral visual field, nearby objects can make one another difficult to recognize (crowding) in a manner that critically depends on their separation. We manipulated the apparent separation of objects using the illusory shifts in perceived location that arise from local motion to determine if crowding depends ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/11.9.2
更新日期:2011-08-08 00:00:00
abstract::The development of spatiotemporal interactions giving rise to classical receptive field properties has been well studied in animal models, but little is known about the development of putative nonclassical mechanisms in any species. Here we used visual evoked potentials to study the developmental status of spatiotempo...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/17.6.12
更新日期:2017-06-01 00:00:00
abstract::The visual system provides a representation of what and where objects are. This entails parsing the visual scene into distinct objects. Initially, the visual system encodes information locally. While interactions between adjacent cells can explain how local fragments of an object's contour are extracted from a scene, ...
journal_title:Journal of vision
pub_type: 杂志文章,评审
doi:10.1167/15.7.1
更新日期:2015-01-01 00:00:00
abstract::Performance on interval timing is often explained by the assumption of an internal clock based on neural counting. According to this account, a neural pacemaker generates pulses, and the number of pulses relating to a physical time interval is recorded by a counter. Thus, the number of accumulated pulses is the intern...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/15.3.5
更新日期:2015-03-10 00:00:00
abstract::Interpreting colormap visualizations requires determining how dimensions of color in visualizations map onto quantities in data. People have color-based biases that influence their interpretations of colormaps, such as a dark-is-more bias-darker colors map to larger quantities. Previous studies of color-based biases f...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/jov.20.12.7
更新日期:2020-11-02 00:00:00
abstract::Humans can estimate and encode numerosity over a large range, from very few items to several hundreds. Two distinct mechanisms have been proposed: subitizing, for numbers up to four and estimation for larger numerosities. We have recently extended this idea by suggesting that for very densely packed arrays, when items...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/19.6.14
更新日期:2019-06-03 00:00:00
abstract::In the occlusion illusion, a partly occluded object is perceived as though it were less occluded than it actually is (Palmer, Brooks, & Lai, 2007). We confirm and extend this finding using a stimulus with a moving occluder. In agreement with Palmer et al.'s (2007) findings and their partial-modal-completion hypothesis...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/15.1.22
更新日期:2015-01-22 00:00:00
abstract::Conventional magnetic resonance imaging (MRI) is useful for assessing morphological changes but not for assessing deformations inside homogeneous structures (M. D. Abràmoff, A. P. Van Gils, G. H. Jansen, & M. P. Mourits, 2000). Since no intrinsic contrast can be imaged for distinguishing heterogeneous patterns of musc...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/7.14.5
更新日期:2007-11-21 00:00:00
abstract::Our recent psychophysical experiments have identified differences in the spatial summation characteristics of pattern detection and position discrimination tasks performed with rotating, expanding, and contracting stimuli. Areas MT and MST are well established to be involved in processing these stimuli. fMRI results h...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.5.21
更新日期:2010-05-01 00:00:00
abstract::One approach toward understanding how vision computes surface lightness is to first determine what principles govern lightness in simple stimuli and then test whether these hold for more complex stimuli. Gilchrist (2006) proposed that in the simplest images that produce the experience of a surface (two surfaces differ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/14.13.25
更新日期:2014-11-25 00:00:00
abstract::S-cone increment and decrement detection thresholds were measured in the presence of bipolar, dynamic noise masks. Noise chromaticities were the L-, M-, and S-cone directions, as well as L-M, L+M, and achromatic (L+M+S) directions. Noise contrast power was varied to measure threshold Energy versus Noise (EvN) function...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/14.13.8
更新日期:2014-11-12 00:00:00
abstract::We used biased random-dot dynamic test stimuli to measure the strength of the motion aftereffect (MAE) to evaluate the usefulness of this technique as a measure of motion adaptation strength. The stimuli consisted of noise dots whose individual directions were random and of signal dots moving in a unique direction. Al...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/2.4.3
更新日期:2002-01-01 00:00:00
abstract::Peripheral viewing is characterized by poor resolution and distortions as compared to central viewing; nevertheless, when we move our gaze around, the visual scene does not appear to change. One possible mechanism leading to perceptual uniformity would be that peripheral appearance is extrapolated based on foveal info...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/17.9.14
更新日期:2017-08-01 00:00:00
abstract::Previous studies have painted a conflicting picture on the amount of visual information humans can extract from viewing a natural scene briefly. Although some studies suggest that a single glimpse is sufficient to put about five visual objects in memory, others find that not much is retained in visual memory even afte...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/5.7.5
更新日期:2005-09-16 00:00:00
abstract::Optical blur in the peripheral retina is known to be highly anisotropic due to nonrotationally symmetric wavefront aberrations such as astigmatism and coma. At the neural level, the visual system exhibits anisotropies in orientation sensitivity across the visual field. In the fovea, the visual system shows higher sens...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/16.5.1
更新日期:2016-01-01 00:00:00
abstract::Sensory neurons represent stimulus information with sequences of action potentials that differ across repeated measurements. This variability limits the information that can be extracted from momentary observations of a neuron's response. It is often assumed that integrating responses over time mitigates this limitati...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/18.8.8
更新日期:2018-08-01 00:00:00
abstract::To cope with the continuously incoming stream of input, the visual system has to group information across space and time. Usually, spatial and temporal grouping are investigated separately. However, recent findings revealed that these two grouping mechanisms strongly interact and should therefore be studied together r...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.8.5
更新日期:2010-07-01 00:00:00
abstract::Visual short-term memory (VSTM) load leads to impaired perception during maintenance. Here, we fitted the contrast response function to psychometric orientation discrimination data while also varying attention demand during maintenance to investigate: (1) whether VSTM load effects on perception are mediated by a modul...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/jov.20.10.6
更新日期:2020-10-01 00:00:00
abstract::Subjects develop a preferred retinal locus of fixation (PRL) under simulation of central scotoma. If systematic relocations are applied to the stimulus position, PRLs manifest at a location in favor of the stimulus relocation. The present study investigates whether the induced PRL is transferred to important visual ta...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/17.14.2
更新日期:2017-12-01 00:00:00
abstract::The neural mechanisms responsible for unifying noncontiguous regions of a visual image into a percept of a single surface remain largely unknown. To investigate these mechanisms, we used a novel stimulus in which local luminance was the only cue for surface segmentation. Subjects viewed an array of small adjoining ele...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/8.7.28
更新日期:2008-11-07 00:00:00
abstract::A common theme running through much of the visual recognition literature is that faces are special. Many studies now describe evidence for the idea that faces are processed in a dedicated center in cortex. Studies have also argued for the presence of evolutionarily expedient pathways dedicated to the processing of cer...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.1.7
更新日期:2010-01-13 00:00:00
abstract::Spatial attention shifts receptive fields in monkey extrastriate visual cortex toward the focus of attention (S. Ben Hamed, J. R. Duhamel, F. Bremmer, & W. Graf, 2002; C. E. Connor, J. L. Gallant, D. C. Preddie, & D. C. Van Essen, 1996; C. E. Connor, D. C. Preddie, J. L. Gallant, & D. C. Van Essen, 1997; T. Womelsdorf...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/7.11.5
更新日期:2007-08-23 00:00:00
abstract::A horizontally moving grating viewed within a diamond-shaped aperture can be made to appear to move obliquely by introducing appropriate depth-ordering cues (R. O. Duncan, T. D. Albright, & G. R. Stoner, 2000). It is commonly assumed that the depth cues in such displays determine which line terminators are seen as int...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/8.2.4
更新日期:2008-02-20 00:00:00
abstract::Visual motion information passes through several distinct stages including local motion processing in an earlier stage, followed by global motion processing at a later stage. However, the stage at which the perceptual limit of detection arises remains unknown. In order to examine which stage is critical for motion det...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.2.9
更新日期:2010-02-12 00:00:00
abstract::We investigate how the population nonlinearities resulting from lateral inhibition and thresholding in sparse coding networks influence neural response selectivity and robustness. We show that when compared to pointwise nonlinear models, such population nonlinearities improve the selectivity to a preferred stimulus an...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/jov.20.12.10
更新日期:2020-11-02 00:00:00
abstract::Features of moving objects are non-retinotopically integrated along their motion trajectories as demonstrated by a variety of recent studies. The mechanisms of non-retinotopic feature integration are largely unknown. Here, we investigated the role of attention in non-retinotopic feature integration by using the sequen...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.12.8
更新日期:2010-10-01 00:00:00
abstract::Observers performed three between- and two within-category perceptual decisions with hybrid stimuli comprising low and high spatial frequency (SF) images. We manipulated (a) attention to, and (b) congruency of information in the two SF bands. Processing difficulty of the different SF bands varied across different cate...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.10.25
更新日期:2010-08-24 00:00:00
abstract::Natural visual scenes contain several independent sources of information (cues) about a single property such as slant. It is widely assumed that the visual system processes such cues separately and then combines them with an averaging operation that takes the reliabilities of the individual cues into account. Does tha...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/7.3.2
更新日期:2007-02-16 00:00:00