Results 11 to 20 of about 111,651 (309)

Visual evoked potential repeatability using the Diopsys NOVA LX fixed protocol in normal older adults

open access: yesClinical Ophthalmology, 2018
Richard C Trevino,1 Carolyn E Majcher,1 Adreain M Henry,1 Melinda Rodriguez,1 William E Sponsel1–3 1Rosenberg School of Optometry, University of the Incarnate Word, San Antonio, TX, USA; 2WESMDPA Baptist Medical Center Glaucoma Service, San ...
Trevino RC   +4 more
doaj   +1 more source

Study of VEP in Ethambutol Optic Neuropathy: A Cross-sectional Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Introduction: One important first-line drug for treating Tuberculosis (TB) is Ethambutol (EMB), which carries a built-in risk of causing optic neuropathy, potentially resulting in permanent visual impairment.
Sofiza Mohmedsaleem Chandniwala   +3 more
doaj   +1 more source

The effect of change of check size and wavelength of stimulus on visual-evoked potential parameters

open access: yesDelta Journal of Ophthalmology, 2016
Purpose of the study The present study was conducted to evaluate the effect of change of wavelength of flash stimulus and change of check size on the parameters of the visual-evoked potential (VEP) amplitude and latency in normal individuals ...
Mona Abdelkader
doaj   +1 more source

On the stimulus duty cycle in steady state visual evoked potential [PDF]

open access: yes, 2014
Brain-computer interfaces (BCI) are useful devices that allow direct control of external devices using thoughts, i.e. brain's electrical activity. There are several BCI paradigms, of which steady state visual evoked potential (SSVEP) is the most commonly
Wilson, John J., Palaniappan, Ramaswamy
core   +1 more source

Comparison of the efficacies of patching and penalization therapies for the treatment of amblyopia patients

open access: yesInternational Journal of Ophthalmology, 2014
AIM: Tocompare the efficacies of patching and penalization therapies for the treatment of amblyopia patients.METHODS:The records of 64 eyes of 50 patients 7 to 16y of age who had presented to our clinics with a diagnosis of amblyopia, were evaluated ...
Cemalettin Cabi   +3 more
doaj   +1 more source

Visual evoked potentials in the horse [PDF]

open access: yesBMC Veterinary Research, 2016
Electrical potentials generated in the central nervous system in response to brief visual stimuli, flash visual evoked potentials (FVEPs), can be recorded non-invasively over the occipital cortex. FVEPs are used clinically in human medicine and also experimentally in a number of animal species, but the method has not yet been evaluated in the horse ...
L. Ström, B. Ekesten
openaire   +3 more sources

Steady-state visual evoked potentials can be explained by temporal superposition of transient event-related responses [PDF]

open access: yes, 2011
<p><b>Background:</b> One common criterion for classifying electrophysiological brain responses is based on the distinction between transient (i.e. event-related potentials, ERPs) and steady-state responses (SSRs).
Paula Pazo-Alvarez   +24 more
core   +1 more source

Evaluation of the effect of myopia on visual evoked potential in medical students

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2022
Background: Visual evoked potentials (VEPs) are electrical potential differences recorded from the occipital lobe in response to different visual stimulus.
Smile Garg   +3 more
doaj   +1 more source

Normative values of visual evoked potential in adults

open access: yesIndian Journal of Ophthalmology, 2021
Purpose: Visual evoked potentials (VEP) are used to determine the function of visual pathway from the optic nerve to visual cortex. Various factors may affect VEP response, viz., technical and environmental.
Merry Septemi Ekayanti   +2 more
doaj   +1 more source

Audio-visual speech perception: a developmental ERP investigation [PDF]

open access: yes, 2013
Being able to see a talking face confers a considerable advantage for speech perception in adulthood. However, behavioural data currently suggest that children fail to make full use of these available visual speech cues until age 8 or 9.
Thomas, MS   +15 more
core   +1 more source

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