Significance Our ability to see, localize, and interact with stimuli varies depending on their location in the visual field. Here we consider source of these variations for several aspects spatial vision: crowding (the disruption object recognition clutter), localization, saccadic eye movements. We observe a range across both individuals field strong correlations between all tasks. However, number dissociations exclude possibility that arise from same representation Rather, propose “topology...

Whenever the eyes move, spatial attention must keep track of locations targets as they shift on retina. This study investigated transsaccadic updating visual to cued targets. While observers prepared a saccade, we flashed an irrelevant, but salient, color cue in their periphery and measured allocation before after saccade using tilt discrimination task. We found that just was allocated cue's future retinal location, its predictively "remapped" location. Attention sustained at location world...

The premotor theory of attention postulates that spatial arises from the activation saccade areas and deployment is consequence motor programming. Yet attentional oculomotor processes have been shown to be dissociable at neuronal level in covert tasks. To investigate a potential dissociation behavioral level, we instructed human participants move their eyes (saccade) towards 1 2 nearby, competing targets. distribution visual was determined using oriented stimuli presented either target...

Oculomotor selection, spatial task relevance, and visual working memory (WM) are described as three processes highly intertwined sustained by similar cortical structures. However, because task-relevant locations always constitute potential saccade targets, no study so far has been able to distinguish between oculomotor selection relevance. We designed an experiment that allowed us dissociate in humans the contribution of execution retention feature representations WM. report relevance lead...

Both patients with eye movement disorders and healthy participants whose oculomotor range had been experimentally reduced have reported to show attentional deficits at locations unreachable by their eyes. Whereas previous studies were mainly based on the evaluation of reaction times, we measured visual sensitivity before saccadic movements during fixation either within or beyond participants’ range. Participants rotated heads prevent them from performing large rightward saccades. In this...

Abstract The default network (DN) is a brain with correlated activities spanning frontal, parietal, and temporal cortical lobes. DN activates for high-level cognition tasks deactivates when subjects are actively engaged in perceptual tasks. Despite numerous observations, the role of deactivation remains unclear. Using computational neuroimaging applied to large dataset Human Connectome Project (HCP) two individual scanned over many repeated runs, we demonstrate that selectively as function...

Measuring visual sensitivity has become popular to determine the spatial deployment of attention. Critically, accuracy measurement depends on quality stimulus used. We evaluated strengths and weaknesses six commonly used stimuli for assessing While preparing an eye movement a cued item, participants discriminated stimulus-specific feature, either at location or other equidistant uncued locations. Stimuli differed in their features (digital letters, Gabors, crosses, pink noise, random dot...

Each saccade shifts the projections of visual scene on retina. It has been proposed that receptive fields neurons in oculomotor areas are predictively remapped to account for these shifts. While remapping whole seems prohibitively complex, selection by attention may limit processes a subset attended locations. Because attentional consumes time, locations should evolve too. In our study, we cued spatial location presenting an attention-capturing cue at different times before and constructed...

In many situations like playing sports or driving a car, we keep track of moving objects, despite the frequent eye movements that drastically interrupt their retinal motion trajectory. Here report evidence transsaccadic tracking relies on trade-offs attentional resources from tracked object's path to its remapped location. While participants covertly object, presented pulses coherent at different locations probe allocation spatial attention along entire path. Changes in sensitivity for these...

While participants made 10° horizontal saccades, two dots were presented, one before and after the saccade. Each dot was presented for 400 ms, first turned off about 100 ms before, while second on The separated vertically by 3°, but because of intervening eye movement, they also horizontally retina an additional 10°. Participants nevertheless reported that perceived motion much more vertical than horizontal, suggesting trans-saccadic displacement corrected, at least to some extent, retinal...

Object tracking across eye movements is thought to rely on presaccadic updating of attention between the object's current and its "remapped" location (i.e., postsaccadic retinotopic location). We report evidence for a bifocal, sampling these two positions. While preparing saccade, participants viewed four spatially separated random dot kinematograms, one which was cued by colored flash. They reported direction coherent motion signal at while second occurred simultaneously either cue's...

Abstract When preparing a saccade, attentional resources are focused at the saccade target and its immediate vicinity. Here we show that this does not hold true when saccades prepared toward recently extinguished target. We obtained detailed maps of orientation sensitivity participants either remained on screen or disappeared before eyes moved. found attention was mainly surround visible spread to more peripheral locations as function distance from cue delay between target’s disappearance...

The saccades' path is influenced by visual distractors, making their trajectory curve away or toward them. Previous research suggested that the more salient distractor, pronounced curvature. We investigate saliency of spatial features, predicted a constrained maximum entropy model to be optimal non-optimal information carriers in fast vision, using them as distractors saccadic task. Their effect was compared luminance-based control distractors. Optimal features evoke larger curvature and...

Abstract Across saccadic eye movements, the visual system receives two successive static images corresponding to pre- and postsaccadic projections of field on retina. The existence a mechanism integrating content these is today still matter debate. Here, we studied transfer feature across saccades using blanking paradigm. Participants moved their eyes peripheral grating discriminated change in its orientation occurring during movement. was either constantly screen or briefly blanked after...

Observers made a saccade between two fixation markers while probe was flashed sequentially at locations on side screen. The first presented in the far periphery just within observer's visual field. This target extinguished and observers large away from probe, which would have left it outside field if had still been present. second then presented, displaced same direction as eye movement by about distance step. Because both eyes probes shifted similar amounts, there little or no shift...

Abstract Different attention and saccade control areas contribute to space constancy by remapping target activity onto their expected post-saccadic locations. To visualize this dynamic remapping, we used a technique developed Honda (2006) where probe moved vertically while participants made across the motion path. Observers do not report any large excursions of trace at time that would correspond classical peri-saccadic mislocalization effect. Instead, they reported appeared be broken into...

Whenever the eyes move, spatial attention must keep track of locations attended targets as they shift on retina. We report first direct evidence for transsaccadic updating visual to cued targets. While observers prepared a saccade, we flashed salient cue in their periphery and measured allocation before after saccade using tilt discrimination task. Across was sustained at cue’s location world, despite large retina; retinal decayed quickly eye movement. Moreover, just allocated future...

Most vertebrates use head and eye movements to quickly change gaze orientation sample different portions of the environment with periods stable fixation. Visual information must be integrated across fixations construct a complete perspective visual environment. In concert this sampling strategy, neurons adapt unchanging input conserve energy ensure that only novel from each fixation is processed. We demonstrate how adaptation recovery times saccade properties interact thus shape...

The default mode network (DMN) is a large scale brain with correlated cortical activities in frontal, parietal and temporal nodes. These nodes deactivate when participants are actively engaged perceptual tasks, activate for high-level cognition tasks such as mind wandering autobiographical memory. While recent findings indicate that activations deactivations of the DMN carry visual information related to memory, functional role its remains mystery. Using population receptive field methods...

This experimental protocol was designed to investigate whether visual attention is obligatorily deployed at the endpoint of saccades. To this end, we recorded eye position human participants engaged in a saccade task via tracking and assessed orientation discrimination performance various locations during preparation. Importantly, instead using single target paradigm for which typically coincides roughly with target, comprised presentation two nearby targets, leading distinct spatial...

Measuring visual sensitivity has become highly popular to determine the deployment of visuospatial attention. In this context, a variety different stimuli and paradigms have been used. Our study aimed evaluate strengths weaknesses six types these stimuli, frequently used as measures While preparing an eye movement toward endogenously cued target, ten participants discriminated stimulus specific feature, either at or other equidistant locations. Stimuli differed both in features (oriented 1/f...

Abstract To achieve visual space constancy, our brain remaps eye-centered projections of objects across saccades. Here, we measured saccade trajectory curvature following the presentation visual, auditory, and audiovisual distractors in a double-step task to investigate if this stability mechanism also accounts for localized sounds. We found that trajectories systematically curved away from position at which either light or sound was presented, suggesting both modalities are represented...

Abstract Across saccadic eye movements, the visual system receives two successive static images corresponding to pre- and postsaccadic projections of field on retina. The existence a mechanism integrating content these is today still matter debate. Here, we studied transfer feature across saccades using blanking paradigm. Participants moved their eyes peripheral grating discriminated change in its orientation occurring during movement. was either constantly screen or briefly blanked after...