解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
abstract::Using identical stimuli and methods, we assessed the effects of flankers on three different tasks, orientation discrimination, contrast discrimination, and detection, in central, peripheral, and amblyopic vision. The goal was to understand the factors that limit performance of a task in the presence of flankers in eac...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/11.1.10
更新日期:2011-01-10 00:00:00
abstract::Perceptual learning involves modification of cortical processes so that transfer to new task variants depends on neuronal representation overlap. Neuron selectivity varies with cortical level, so that the degree of transfer should depend on training-induced modification level. We ask how different can stimuli be, how ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/11.1.8
更新日期:2011-01-07 00:00:00
abstract::Recent theories of lightness perception assume that lightness (perceived reflectance) is computed by a process that contrasts the target's luminance with that of one or more regions in its spatial surround. A challenge for any such theory is the phenomenon of lightness assimilation, which occurs when increasing the lu...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.14.40
更新日期:2010-12-31 00:00:00
abstract::Visual prostheses for the restoration of functional vision are currently under development. To guide prosthesis research and allow for an accurate prognosis of functional gain, simulating the experience of a retinal prosthesis in healthy individuals is desirable. Current simulation paradigms lack crucial aspects of th...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.14.32
更新日期:2010-12-29 00:00:00
abstract::In everyday experience, perceived colors of objects remain approximately constant under changes in illumination. This constancy is helpful for identifying objects across viewing conditions. Studies on color constancy often employ monitor simulations of illumination and reflectance changes. Real scenes, however, have f...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.9.16
更新日期:2010-12-27 00:00:00
abstract::The ability to pursue moving objects with the eyes is vital to humans. However, it remains unclear how the brain differentiates visual object motion, smooth pursuit eye movements (SPEM), and eye movement-induced relative motion on the retina and where visual-to-oculomotor transformation takes place. To characterize fu...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.14.21
更新日期:2010-12-20 00:00:00
abstract::We examined whether motion blur accompanying apparent motion (AM) affects the shape of a stimulus presented in the motion path. In a two-alternative forced-choice procedure, observers judged the shape of a Gaussian test stimulus flashed in the path of motion, relative to a reference stimulus, which was a circular Gaus...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.13.15
更新日期:2010-11-24 00:00:00
abstract::In motion transparency, one surface is very often seen on top of the other in spite of no proper depth cue in the display. We investigated the dynamics of depth assignment in motion transparency stimuli composed of random dots moving in opposite directions. Similarly to other bistable percepts, which surface is seen i...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.13.23
更新日期:2010-11-01 00:00:00
abstract::We investigated the role of gaze in encoding of object landmarks in navigation. Gaze behavior was measured while participants learnt to navigate in a virtual large-scale environment in order to understand the sampling strategies subjects use to select visual information during navigation. The results showed a consiste...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.12.28
更新日期:2010-10-22 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::Studies of eccentricity-dependent sensitivity loss typically require participants to maintain fixation while making judgments about stimuli presented at a range of sizes and eccentricities. However, training participants to fixate can prove difficult, and as stimulus size increases, they become poorly localized and ma...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.12.18
更新日期:2010-10-01 00:00:00
abstract::Path integration refers to the ability to integrate self-motion information to estimate one's current position and orientation relative to the origin. To investigate the effect of active selection in path integration, we used a virtual homing task in which participants traveled along hallways and attempted to directly...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.11.25
更新日期:2010-09-27 00:00:00
abstract::Although visual systems are optimized to deal with the natural visual environment, our understanding of human motion perception is in large part based on the use of artificial stimuli. Here, we assessed observers' ability to estimate the direction of translating natural images and fractals by having them adjust the or...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.11.5
更新日期:2010-09-03 00:00:00
abstract::Bayesian cue combination models have been used to examine how human observers combine information from several cues to form estimates of linear quantities like depth. Here we develop an analogous theory for circular quantities like planar direction. The circular theory is broadly similar to the linear theory but diffe...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.11.15
更新日期:2010-09-01 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::This study compared the effects of age on the perception of translational, radial, and rotational global motion patterns. Motion coherence thresholds were measured for judging the direction of each motion type as a function of contrast (visibility) and temporal sampling rate in young and elderly participants. Coherenc...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.10.15
更新日期:2010-08-17 00:00:00
abstract::We measured binocular and monocular depth thresholds for objects presented in a real environment. Observers judged the depth separating a pair of metal rods presented either in relative isolation, or surrounded by other objects, including a textured surface. In the isolated setting, binocular thresholds were greatly s...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.10.5
更新日期:2010-08-01 00:00:00
abstract::The human visual system is sensitive to second-order modulations of the local contrast (CM) or amplitude (AM) of a carrier signal. Second-order cues are detected independently of first-order luminance signals; however, it is not clear why vision should benefit from second-order sensitivity. Analysis of the first- and ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.9.2
更新日期:2010-07-16 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::The perception of a bistable stimulus as one or the other interpretation can be biased by prior presentations of that stimulus. Such learning effects have been found to be long lasting even after small amounts of training. The effectiveness of training may be influenced by preexposure to the ambiguous stimulus. Here w...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.8.15
更新日期:2010-07-01 00:00:00
abstract::S.-W. Wu, M. F. Dal Martello, and L. T. Maloney (2009) evaluated subjects' performance in a visuo-motor task where subjects were asked to hit two targets in sequence within a fixed time limit. Hitting targets earned rewards and Wu et al. varied rewards associated with targets. They found that subjects failed to maximi...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.6.1
更新日期:2010-06-01 00:00:00
abstract::Recent experiments have established that monocular areas arising due to occlusion of one object by another contribute to stereoscopic depth perception. It has been suggested that the primary role of monocular occlusions is to define depth discontinuities and object boundaries in depth. Here we use a carefully designed...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.6.11
更新日期:2010-06-01 00:00:00
abstract::Culture shapes how people gather information from the visual world. We recently showed that Western observers focus on the eyes region during face recognition, whereas Eastern observers fixate predominantly the center of faces, suggesting a more effective use of extrafoveal information for Easterners compared to Weste...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.6.21
更新日期:2010-06-01 00:00:00
abstract::This study examined the roles of pupillary miosis and experience-mediated compensation in older observers' superior ability to read optically blurred text. The size thresholds of younger and older adult observers for reading common words and identifying line drawings of everyday objects were compared with natural and ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.5.7
更新日期:2010-05-01 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::Recent studies suggest that the active observer combines optic flow information with extra-retinal signals resulting from head motion. Such a combination allows, in principle, a correct discrimination of the presence or absence of surface rotation. In Experiments 1 and 2, observers were asked to perform such discrimin...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.5.12
更新日期:2010-05-01 00:00:00
abstract::Spatial attention permits to allocate more processing resources to a restricted portion of the visual space. The influential premotor theory states that the allocation of spatial attention relies on the same processes as those responsible for programming saccadic eye movements. Accordingly, several studies have alread...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.4.21
更新日期:2010-04-28 00:00:00
abstract::This study investigated the mechanisms of grouping and segregation in natural scenes of close-up foliage, an important class of scenes for human and non-human primates. Close-up foliage images were collected with a digital camera calibrated to match the responses of human L, M, and S cones at each pixel. The images we...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.4.10
更新日期:2010-04-27 00:00:00
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::In their day-to-day activities human beings are constantly generating behavior, such as pointing, grasping or verbal reports, on the basis of visible target locations. The question arises how the brain represents target locations. One possibility is that the brain represents them metrically, i.e. in terms of distance ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.3.3
更新日期:2010-03-23 00:00:00
abstract::In three experiments, using a two-alternative forced-choice task, we obtained depth judgments of displays containing transparent regions. The regions varied in lightness, size, and animation. Observers nearly always strongly preferred one certain depth ordering among the regions, even though their lightness conditions...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/10.2.19
更新日期:2010-02-23 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::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::Determining the features of natural stimuli that are most useful for specific natural tasks is critical for understanding perceptual systems. A new approach is described that involves finding the optimal encoder for the natural task of interest, given a relatively small population of noisy "neurons" between the encode...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.13.17
更新日期:2009-12-16 00:00:00
abstract::Communication is critical for normal, everyday life. During a conversation, information is conveyed in a number of ways, including through body, head, and facial changes. While much research has examined these latter forms of communication, the majority of it has focused on static representations of a few, supposedly ...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.13.7
更新日期:2009-12-07 00:00:00
abstract::Certain features of facial appearance perceptually resemble expressive cues related to facial displays of emotion. We hypothesized that because expressive markers of anger (such as lowered eyebrows) overlap with perceptual markers of male sex, perceivers would identify androgynous angry faces as more likely to be a ma...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.12.19
更新日期:2009-11-24 00:00:00
abstract::The leading edge of the a-wave of the ERG is generally believed to accurately reflect the changes in the circulating current through the cGMP-gated channels in the outer segment plasma membrane of rods and cones. The aspartate-isolated mammalian electroretinogram (ERG) to a rod-saturating flash contains a fast "nose"-...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.12.9
更新日期:2009-11-17 00:00:00
abstract::Fast adaptation biases the perceived motion direction of a subsequently presented ambiguous test pattern (R. Kanai & F. A. Verstraten, 2005). Depending on both the duration of the adapting stimulus (ranging from tens to hundreds of milliseconds) and the duration of the adaptation-test blank interval, the perceived dir...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.11.27
更新日期:2009-10-28 00:00:00
abstract::During binocular rivalry (BR), conflicting monocular images are alternately suppressed from awareness. During suppression of an image, contrast sensitivity for probes is reduced by approximately 0.3-0.5 log units relative to when the image is in perceptual dominance. Previous studies on rivalry suppression have led to...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.11.17
更新日期:2009-10-16 00:00:00
abstract::Visually guided catch-up saccades during the pursuit of a moving target are highly influenced by smooth pursuit performance. For example, the decision to execute a saccade and its amplitude is driven by the difference in velocity between the eye and the target. In previous studies, we have demonstrated that the predic...
journal_title:Journal of vision
pub_type: 杂志文章
doi:10.1167/9.11.7
更新日期:2009-10-06 00:00:00