Global Rather Than Vertical-Selective Saccadic Abnormalities in Progressive Supranuclear Palsy. [PDF]
Ann Clin Transl NeurolABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Nguyen DD +6 more
europepmc +2 more sources
Is mislocalization during saccades related to the position of the saccade target within the image or to the gaze position at the end of the saccade? [PDF]
PLoS ONE, 2013 A stimulus that is flashed around the time of a saccade tends to be mislocalized in the direction of the saccade target. Our question is whether the mislocalization is related to the position of the saccade target within the image or to the gaze position
Maria Matziridi +2 more
doaj +1 more source
Geometry of Saccades and Saccadic Cycles
, 2023 The paper is devoted to the development of the differential geometry of saccades and saccadic cycles. We recall an interpretation of Donder's and Listing's law in terms of the Hopf fibration of the $3$-sphere over the $2$-sphere. In particular, the configuration space of the eye ball (when the head is fixed) is the 2-dimensional hemisphere $S^+_L ...
Dmitri Alekseevsky, I. M. Shirokov
openaire +3 more sources
Pre-saccadic perception: Separate time courses for enhancement and spatial pooling at the saccade target. [PDF]
PLoS ONE, 2017 We interact with complex scenes using eye movements to select targets of interest. Studies have shown that the future target of a saccadic eye movement is processed differently by the visual system.
Antimo Buonocore +2 more
doaj +1 more source
Coordination of pupil and saccade responses by the superior colliculus
bioRxiv, 2020 The appearance of a salient stimulus evokes saccadic eye movements and pupil dilation as part of the orienting response. Although the role of the superior colliculus (SC) in saccade and pupil dilation has been established separately, whether and how ...
Chin-An Wang, D. Munoz
semanticscholar +1 more source
Spatiotemporal Content of Saccade Transients
Current Biology, 2020 Summary Humans use rapid gaze shifts, known as saccades, to explore visual scenes. These movements yield abrupt luminance changes on the retina, which elicit robust neural discharges at fixation onsets.
N. Mostofi +5 more
semanticscholar +1 more source
Dissociable roles of human frontal eye fields and early visual cortex in presaccadic attention
Nature Communications, 2023 Shortly before saccadic eye movements, visual sensitivity at the saccade target is enhanced, at the expense of sensitivity elsewhere. Some behavioral and neural correlates of this presaccadic shift of attention resemble those of covert attention ...
Nina M. Hanning +2 more
doaj +1 more source
MAD saccade: statistically robust saccade threshold estimation via the median absolute deviation
Journal of Eye Movement Research, 2020 Saccade detection is a critical step in the analysis of gaze data. A common method for saccade detection is to use a simple threshold for velocity or acceleration values, which can be estimated from the data using the mean and standard deviation. However,
Benjamin Voloh +3 more
semanticscholar +1 more source
Visual mislocalization during double-step saccades
Frontiers in Systems Neuroscience, 2015 Visual objects presented briefly at the time of saccade onset appear compressed toward the saccade target. Compression strength depends on the presentation of a visual saccade target signal and is strongly reduced during the second saccade of a double ...
Eckart eZimmermann
doaj +1 more source
Regularities in vertical saccadic metrics: new insights, and future perspectives
Frontiers in Psychology, 2023 IntroductionAsymmetries in processing by the healthy brain demonstrate regularities that facilitate the modeling of brain operations. The goal of the present study was to determine asymmetries in saccadic metrics during visual exploration, devoid of ...
Harold H. Greene +2 more
doaj +1 more source