Results 21 to 30 of about 27,988 (163)

Short-Term Adaptive Modification of Dynamic Ocular Accommodation [PDF]

open access: yesInvestigative Opthalmology & Visual Science, 2009
Indirect observations suggest that the neural control of accommodation may undergo adaptive recalibration in response to age-related biomechanical changes in the accommodative system. However, there has been no direct demonstration of such an adaptive capability.
Shrikant R, Bharadwaj   +2 more
openaire   +2 more sources

The Role of Different Afferent Systems in the Modulation of the Otolith-Ocular Reflex After Long-Term Space Flights

open access: yesFrontiers in Physiology, 2022
BackgroundThe vestibular (otolith) function is highly suppressed during space flight (SF) and the study of these changes is very important for the safety of the space crew during SF missions.
Dmitrii O. Glukhikh   +4 more
doaj   +1 more source

Custom Ocular Prosthesis for Enucleated Eye: A Case Report

open access: yesJournal of College of Medical Sciences-Nepal, 2016
The unfortunate loss or absence of an eye may be caused by a congenital defect, irreparable trauma, tumor, sympathetic ophthalmia, or the need for histologic confirmation of a suspected diagnosis.
Surya Narayan Pun   +5 more
doaj   +1 more source

A Neuroanatomically Grounded Optimal Control Model of the Compensatory Eye Movement System in Mice

open access: yesFrontiers in Systems Neuroscience, 2020
We present a working model of the compensatory eye movement system in mice. We challenge the model with a data set of eye movements in mice (n =34) recorded in 4 different sinusoidal stimulus conditions with 36 different combinations of frequency (0.1–3 ...
Peter J. Holland   +15 more
doaj   +1 more source

Incremental Velocity Error as a New Treatment in Vestibular Rehabilitation (INVENT VPT) Trial: study protocol for a randomized controlled crossover trial

open access: yesTrials, 2021
Background A clinical pattern of damage to the auditory, visual, and vestibular sensorimotor systems, known as multi-sensory impairment, affects roughly 2% of the US population each year.
Ann-Margret Ervin   +13 more
doaj   +1 more source

Neuromorphic Adaptable Ocular Dominance Maps [PDF]

open access: yes, 2007
Time staggered winner-take-all (ts-WTA) is a novel analog CMOS neuron cell [8], that computes 'sum of weighted inputs" implemented as floating gate pFET 'synapses'. The cell behavior exhibits competitive learning (WTA) so as to refine its weights in response to stimulation by input patterns staggered over time such that at the end of learning, the cell'
Priti Gupta, Mukti Bansal, C. M. Markan
openaire   +1 more source

Adaptations and Deficits in the Vestibulo‐Ocular Reflex after Peripheral Ocular Motor Palsies [PDF]

open access: yesAnnals of the New York Academy of Sciences, 2003
AbstractPalsy of a nerve might be expected to lower vestibulo‐ocular reflex (VOR) responses in its fields of motion, but effects of peripheral neuromuscular disease were unknown. We recorded the VOR during sinusoidal head rotations in yaw, pitch, and roll at 0.5‐2 Hz and static torsional gain in 43 patients with unilateral nerve palsies.
James A, Sharpe   +2 more
openaire   +2 more sources

Binocular Misalignments Elicited by Altered Gravity Provide Evidence for Nonlinear Central Compensation

open access: yesFrontiers in Systems Neuroscience, 2015
Increased ocular positioning misalignments upon exposure to altered gravity levels (g-levels) have been strongly correlated with space motion sickness severity, possibly due to underlying otolith asymmetries uncompensated in novel gravitational ...
Kara H. Beaton   +3 more
doaj   +1 more source

Subclinical Neck Pain Alters Gaze Stability During the Vestibulo-Ocular Reflex

open access: yesApplied Sciences
(1) Background: Subclinical neck pain is mild-to-moderate neck pain that has not yet been treated, and where individuals experience pain-free days. Alterations in sensorimotor integration, motor control, proprioception, and cerebellar inhibition have ...
Christine Misketis   +3 more
doaj   +1 more source

Microbiological evaluation of conjunctival anopthalmic flora after using digital 3D-printed ocular prosthesis compared to conventional one: a randomized clinical trial

open access: yesBMC Oral Health, 2023
Background This study aims to assess the influence of using 3D-printed acrylic resin versus conventional Poly-methyl methacrylate (PMMA) for fabricating ocular prostheses on the biofilm and microbial flora of anophthalmic socket.
Yassmin A. Tahmawy   +3 more
doaj   +1 more source

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