Results 31 to 40 of about 10,656,530 (237)

Early Clinical and Subclinical Visual Evoked Potential and Humphrey's Visual Field Defects in Cryptococcal Meningitis. [PDF]

open access: yes, 2012
Cryptococcal induced visual loss is a devastating complication in survivors of cryptococcal meningitis (CM). Early detection is paramount in prevention and treatment.
Moodley Anand   +23 more
core   +2 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   +2 more sources

Properties of the flash visual evoked potential recorded in the cat primary visual cortex [PDF]

open access: yes, 1999
The flash visual evoked potential (F-VEP), elicited by a 100 ms diffuse light flash presented at 2 Hz, was examined in the cat primary visual cortex (Area 17).
Lissa B. Padnick   +3 more
core   +1 more source

An online hybrid BCI combining SSVEP and EOG-based eye movements

open access: yesFrontiers in Human Neuroscience, 2023
Hybrid brain-computer interface (hBCI) refers to a system composed of a single-modality BCI and another system. In this paper, we propose an online hybrid BCI combining steady-state visual evoked potential (SSVEP) and eye movements to improve the ...
Jun Zhang   +4 more
doaj   +1 more source

Flash Electroretinography and Pattern Visual Evoked Potential Changes in Ocular Hypertension Patients

open access: yesJournal of Ophthalmology, 2013
Purpose. To evaluate the changes of flash electroretinography (fERG) and pattern visual evoked potentials (pVEP) in ocular hypertension (OHT) patients. Methods.
Ercüment Çavdar   +2 more
doaj   +1 more source

Collagen crosslinking with photoactivated riboflavin in advanced infectious keratitis with corneal melting: Electrophysiological Study [PDF]

open access: yesInternational Journal of Ophthalmology, 2020
AIM: To assess the effect of photoactivated chromophore for keratitis crosslinking (PACK-CXL) in case of severe keratitis with melting on the electrophysiological function of the retina and the optic nerve.
Eman A. Awad   +4 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

Towards improved visual stimulus discrimination in an SSVEP BCI [PDF]

open access: yes, 2010
The dissertation investigated the influence of stimulus characteristics, electroencephalographic (EEG) electrode location and three signal processing methods on the spectral signal to noise ratio (SNR) of Steady State Visual Evoked Potentials (SSVEPs ...
Hodgskiss, Dean Leslie
core   +1 more source

Evaluation of Visual Evoked Potentials in Patient with Angelmans Syndrome - Case Report

open access: yesBalkan Medical Journal, 2013
Background: Angelman syndrome (AS) is a genetic disorder with varying degrees of neurological impairment. It is often associated with ocular involvement.
Tatjana Knezevic   +7 more
doaj   +1 more source

Suitable Stimulation Technique to Record Visual Evoked Potential in Migraine Patients [PDF]

open access: yes, 2020
Background: Migraine is a very common primary headache disorder associated with intermittent attacks and great suffering. To deal with these patients, different diagnostic techniques may be used.
Shushtarian, Seyed Mohammad Masoud
core   +1 more source

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