Results 1 to 10 of about 59,407 (333)

Saccadic inhibition in a guided saccade task [PDF]

open access: yesPeerJ, 2018
The eye movement system reacts very systematically to visual transients that are presented during the planning phase of a saccade. About 50 to 70 ms after the onset of a transient, the number of saccades that are started decreases, a phenomenon that has ...
Isabel Dombrowe
doaj   +5 more sources

Suppression of displacement in severely slowed saccades [PDF]

open access: green, 2000
Severely slowed saccades in spinocerebellar ataxia have previously been shown to be at least partially closed-loop in nature: their long duration means that they can be modified in-flight in response to intrasaccadic target movements.
Anderson, Tim J   +2 more
core   +2 more sources

High-field FMRI reveals brain activation patterns underlying saccade execution in the human superior colliculus. [PDF]

open access: yesPLoS ONE, 2010
The superior colliculus (SC) has been shown to play a crucial role in the initiation and coordination of eye- and head-movements. The knowledge about the function of this structure is mainly based on single-unit recordings in animals with relatively few ...
Ruth M Krebs   +10 more
doaj   +4 more sources

Compensatory saccade in the vestibular impaired monkey

open access: yesFrontiers in Neurology, 2023
IntroductionLoss of the vestibulo-ocular reflex (VOR) affects visual acuity during head movements. Patients with unilateral and bilateral vestibular deficits often use saccadic eye movements to compensate for an inadequate VOR.
Yoshiko Kojima   +4 more
doaj   +1 more source

Characteristics of vestibular corrective saccades in patients with slow visual saccades, vestibular disorders and controls: A descriptive analysis. [PDF]

open access: yesPLoS ONE, 2018
Our aim was to determine whether overt catch up saccades (OS) provoked by vestibular stimuli, as observed in the video head impulse test (vHIT), have comparable metrics as visually triggered horizontal saccades (VS), indicating a common saccadic ...
Dario Andres Yacovino   +3 more
doaj   +1 more source

Evolution of eye movement abnormalities in Huntington’s disease

open access: yesAnnals of Movement Disorders, 2022
Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder. Eye movement abnormalities are characteristic manifestations of HD. The clinical manifestations and eye movement disturbances progress with the natural course of illness.
Khushboo Patel   +4 more
doaj   +1 more source

An fMRI Investigation of Preparatory Set in the Human Cerebral Cortex and Superior Colliculus for Pro- and Anti-Saccades. [PDF]

open access: yesPLoS ONE, 2016
Previous studies have identified several cortical regions that show larger BOLD responses during preparation and execution of anti-saccades than pro-saccades.
Michele Furlan   +2 more
doaj   +1 more source

Saccades and handedness interact to affect scene memory [PDF]

open access: yesPeerJ, 2018
Repetitive saccades benefit memory when executed before retrieval, with greatest effects for episodic memory in consistent-handers. Questions remain including how saccades affect scene memory, an important visual component of episodic memory. The present
Timothy M. Ellmore   +2 more
doaj   +2 more sources

Enhanced Eye Velocity With Backup Saccades in vHIT Tests of a Menière Disease Patient: A Case Report

open access: yesFrontiers in Surgery, 2021
Reduced eye velocity and overt or covert compensatory saccades during horizontal head impulse testing are the signs of reduced vestibular function. However, here we report the unusual case of a patient who had enhanced eye velocity during horizontal head
Maria Montserrat Soriano-Reixach   +6 more
doaj   +1 more source

Bilateral lesion of the cerebellar fastigial nucleus: Effects on smooth pursuit acceleration and non-reflexive visually-guided saccades

open access: yesFrontiers in Neurology, 2022
Background“Central dizziness” due to acute bilateral midline cerebellar disease sparing the posterior vermis has specific oculomotor signs. The oculomotor region of the cerebellar fastigial nucleus (FOR) crucially controls the accuracy of horizontal ...
Christoph Helmchen   +8 more
doaj   +1 more source

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