Results 21 to 30 of about 61,216 (332)
Evolution of eye movement abnormalities in Huntington’s disease
Annals 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
Journal of Otology, 2022 Objective: Saccades accompanied by normal gain in video head impulse tests (vHIT) are often observed in patients with vestibular migraine (VM). However, they are not considered as an independent indicator, reducing their utility in diagnosing VM.
Yi Du +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]
PLoS 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]
PeerJ, 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
Freezing of saccades in dopa-responsive parkinsonian syndrome
American Journal of Ophthalmology Case Reports, 2021 Purpose: Ocular motor abnormalities such as abnormal saccades are common in idiopathic Parkinson's disease (PD) and atypical parkinsonian syndrome, such as progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD).
Techawit Likitgorn +2 more
doaj +1 more source
Journal of Otology, 2023 Background: Saccades are often observed on video head impulse tests (vHIT) in patients with Meniere's Disease (MD) and Vestibular Migraine (VM). However, their saccadic features are not fully described. Objective: This study aims to identify the saccades
Yi Du +6 more
doaj +1 more source
Enhanced Eye Velocity With Backup Saccades in vHIT Tests of a Menière Disease Patient: A Case Report
Frontiers 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
Frontiers 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
Saccades and drifts differentially modulate neuronal activity in V1: Effects of retinal image motion, position, and extraretinal influences [PDF]
, 2008 In natural vision, continuously changing input is generated by fast saccadic eye movements and slow drifts. We analyzed effects of fixational saccades, voluntary saccades, and drifts on the activity of macaque V1 neurons.
Gur, Moshe +2 more
core +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 ...
Alekseevsky, D. V., Shirokov, I. M.
openaire +2 more sources