Results 31 to 40 of about 57,465 (285)

A Vertical Asymmetry in Saccades

open access: yesJournal of Eye Movement Research, 2015
Visual exploration of natural scenes imposes demands that differ between the upper and the lower visual hemifield. Yet little is known about how ocular motor performance is affected by the location of visual stimuli or the direction of a behavioural ...
Mathias Abegg   +2 more
doaj   +1 more source

Saccade-induced image motion cannot account for post-saccadic enhancement of visual processing in primate MST

open access: yesFrontiers in Systems Neuroscience, 2015
Primates use saccadic eye movements to make gaze changes. In many visual areas, including the dorsal medial superior temporal area (MSTd) of macaques, neural responses to visual stimuli are reduced during saccades but enhanced afterwards.
Shaun L Cloherty   +7 more
doaj   +1 more source

Saccadic suppression during voluntary versus reactive saccades

open access: yesJournal of Vision, 2017
Saccades are fast eye movements that reorient gaze. They can be performed voluntarily-for example, when viewing a scene-but they can also be triggered in reaction to suddenly appearing targets. The generation of these voluntary and reactive saccades have been shown to involve partially different cortical pathways.
Gremmler, Elke Svenja, Lappe, Markus
openaire   +3 more sources

Saccadic velocity in the new suppression head impulse test (SHIMP): a new indicator of horizontal vestibular canal paresis and of vestibular compensation

open access: yesFrontiers in Neurology, 2016
ObjectiveTo determine whether saccadic velocity in the suppression head impulse paradigm (SHIMP) test is a reliable indicator of vestibular loss at the acute and at the chronic stage in patients suffering from different vestibular pathologies.Methods35 ...
Qiwen Shen   +8 more
doaj   +1 more source

Involuntary saccades and binocular coordination during visual pursuit in Parkinson's disease [PDF]

open access: yes, 2016
Prior studies of oculomotor function in Parkinson's disease (PD) have either focused on saccades while smooth pursuit eye movements were not involved, or tested smooth pursuit without considering the effect of any involuntary saccades.
Cao, Bo   +6 more
core   +1 more source

Visual contrast processing is largely unaltered during saccades

open access: yesFrontiers in Psychology, 2011
Saccadic suppression refers to a reduction in visual sensitivity during saccadic eye movements. This reduction is conventionally regarded as mediated by either of two sources.
Miguel A García-Pérez, Eli ePeli
doaj   +1 more source

Saccades during attempted fixation in parkinsonian disorders and recessive ataxia: from microsaccades to square-wave jerks. [PDF]

open access: yesPLoS ONE, 2013
During attempted visual fixation, saccades of a range of sizes occur. These "fixational saccades" include microsaccades, which are not apparent in regular clinical tests, and "saccadic intrusions", predominantly horizontal saccades that interrupt ...
Jorge Otero-Millan   +4 more
doaj   +1 more source

Unsupervised learning as a complement to convolutional neural network classification in the analysis of saccadic eye movement in spino-cerebellar ataxia type 2 [PDF]

open access: yes, 2019
IWANN es un congreso internacional que se celebra bienalmente desde 1991. Su campo de estudio se centra en la fundamentación y aplicación de las distintas técnicas de Inteligencia Computacional : Redes Neuronales Artificiales, Algoritmos Genéticos ...
A Esteva   +8 more
core   +1 more source

Biases in the perceived timing of perisaccadic perceptual and motor events [PDF]

open access: yes, 2006
Subjects typically experience the temporal interval immediately following a saccade as longer than a comparable control interval. One explanation of this effect is that the brain antedates the perceptual onset of a saccade target to around the time of ...
B. Bridgeman   +42 more
core   +1 more source

Geometry of saccades and saccadic cycles

open access: yes, 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 ...
Alekseevsky, D. V., Shirokov, I. M.
openaire   +3 more sources

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