Results 31 to 40 of about 314 (124)
Afferent delays and the mislocalization of perisaccadic stimuli
Vision Research, 2001 Determining the precise moment a visual stimulus appears is difficult because visual response latencies vary. This temporal uncertainty could cause localization errors to brief visual targets presented before and during eye movements if the oculomotor system cannot determine the position of the eye at the time the stimulus appeared. We investigated the
Boucher, Leanne +2 more
openaire +3 more sources
Oculomotor Adaptation Elicited By Intra-Saccadic Visual Stimulation: Time-Course of Efficient Visual Target Perturbation [PDF]
, 2016 Perception of our visual environment strongly depends on saccadic eye movements, which in turn are calibrated by saccadic adaptation mechanisms elicited by systematic movement errors. Current models of saccadic adaptation assume that visual error signals
Denis ePélisson +6 more
core +4 more sources
Fixation related shifts of perceptual localization counter to saccade direction [PDF]
, 2019 Perisaccadic compression of the perceived location of flashed visual stimuli toward a saccade target occurs from about 50 ms before a saccade. Here we show that between 150 and 80 ms before a saccade, perceived locations are shifted toward the fixation ...
Lappe, Markus +1 more
core +1 more source
Perceptual stability during saccadic eye movements [PDF]
, 2012 Humans and other primates perform multiple fast eye movements per second in order to redirect gaze within the visual field. These so called saccades challenge visual perception: During the movement phases the projection of the outside world sweeps ...
Klingenhoefer, Steffen
core +1 more source
Adaptation and mislocalization fields for saccadic outward adaptation in humans [PDF]
, 2010 Adaptive shortening of a saccade influences the metrics of other saccades within a spatial window around the adapted target. Within this adaptation field visual stimuli presented before an adapted saccade are mislocalized in proportion to the change of ...
Lappe, Markus +2 more
core +2 more sources
Normal Pursuit-System Limitations— First Discovered in Infantile Nystagmus Syndrome [PDF]
, 2013 Infantile nystagmus syndrome (INS) patients occasionally have impaired pursuit. Model and patient data identified relative timing between target motion initiation and INS-waveform saccades as the cause. We used a new stimulus, the “step-pause-ramp” (SPR),
Dell’Osso, Louis F. +1 more
core +2 more sources
Spatial localization during open-loop smooth pursuit [PDF]
, 2023 Introduction: Numerous previous studies have shown that eye movements induce errors in the localization of briefly flashed stimuli. Remarkably, the error pattern is indicative of the underlying eye movement and the exact experimental condition.
Blanke, Marius +3 more
core +2 more sources
Perisaccadic Mislocalization of Visual Targets by Head-Free Gaze Shifts: Visual or Motor?
Journal of Neurophysiology, 2008 Such perisaccadic mislocalization is maximal in the direction of the saccade and varies systematically with the target-saccade onset delay. We have recently shown that under head-fixed conditions perisaccadic errors do not follow the quantitative predictions of current visuomotor models that explain these mislocalizations in terms of spatial updating.
van Wetter, S.M.C.I. +2 more
openaire +3 more sources
Learning to silence saccadic suppression [PDF]
, 2021 Perceptual stability is facilitated by a decrease in visual sensitivity during rapid eye movements, called saccadic suppression. While a large body of evidence demonstrates that saccadic programming is plastic, little is known about whether the ...
McGraw, Paul V. +2 more
core +2 more sources
constructing stable spatial maps of the word [PDF]
, 2012 To interact rapidly and effectively with our environment, our brain needs access to a neural representation—or map—of the spatial layout of the external world.
Burr, David Charles +1 more
core +1 more source