Results 41 to 50 of about 20,396 (253)

Unravelling the functional development of vertebrate pathways controlling gaze

open access: yesFrontiers in Cell and Developmental Biology, 2023
Animals constantly redirect their gaze away or towards relevant targets and, besides these goal-oriented responses, stabilizing movements clamp the visual scene avoiding image blurring. The vestibulo-ocular (VOR) and the optokinetic reflexes are the main
Marta Barandela   +6 more
doaj   +1 more source

The independence of eye movements in a stomatopod crustacean is task dependent [PDF]

open access: yes, 2017
Stomatopods have an extraordinary visual system, incorporating independent movement of their eyes in all three degrees of rotational freedom. In this work, we demonstrate that in the peacock mantis shrimp, Odontodactylus scyllarus, the level of ocular ...
Daly, Ilse   +3 more
core   +2 more sources

Suboptimal eye movements for seeing fine details. [PDF]

open access: yes, 2018
Human eyes are never stable, even during attempts of maintaining gaze on a visual target. Considering transient response characteristics of retinal ganglion cells, a certain amount of motion of the eyes is required to efficiently encode information and ...
Agaoglu, Mehmet N   +4 more
core   +1 more source

The Reliance on Vestibular Information During Standing Balance Control Decreases With Severity of Vestibular Dysfunction

open access: yesFrontiers in Neurology, 2018
The vestibular system is involved in gaze stabilization and standing balance control. However, it is unclear whether vestibular dysfunction affects both processes to a similar extent.
Joost van Kordelaar   +8 more
doaj   +1 more source

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

Dynamics of gaze control during prey capture in freely moving mice

open access: yeseLife, 2020
Many studies of visual processing are conducted in constrained conditions such as head- and gaze-fixation, and therefore less is known about how animals actively acquire visual information in natural contexts.
Angie M Michaiel   +2 more
doaj   +1 more source

Rett Syndrome: Revised diagnostic criteria and nomenclature [PDF]

open access: yes, 2010
Objective: Rett syndrome (RTT) is a severe neurodevelopmental disease that affects approximately 1 in 10,000 live female births and is often caused by mutations in Methyl-CpG-binding protein 2 (MECP2). Despite distinct clinical features, the accumulation
Amir   +24 more
core   +1 more source

Video Head Impulse Tests with a Remote Camera System: Normative Values of Semicircular Canal Vestibulo-Ocular Reflex Gain in Infants and Children

open access: yesFrontiers in Neurology, 2017
The video head impulse test (VHIT) is widely used to identify semicircular canal function impairments in adults. But classical VHIT testing systems attach goggles tightly to the head, which is not tolerated by infants.
Sylvette R. Wiener-Vacher   +2 more
doaj   +1 more source

Developing a serious game for gaze stability rehabilitation in children with vestibular hypofunction

open access: yesJournal of NeuroEngineering and Rehabilitation, 2023
Background Children with vestibular hypofunction (VH) may have gaze instability, balance disorders, and delayed postural-motor development. Gaze stabilization exercises (GSE) are designed to improve dynamic visual acuity (DVA).
José Ortega Solís   +5 more
doaj   +1 more source

Spatial vision in insects is facilitated by shaping the dynamics of visual input through behavioral action [PDF]

open access: yes, 2012
Egelhaaf M, Boeddeker N, Kern R, Kurtz R, Lindemann JP. Spatial vision in insects is facilitated by shaping the dynamics of visual input through behavioral action. Frontiers in Neural Circuits.
Boeddeker, Norbert   +4 more
core   +2 more sources

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