Results 21 to 30 of about 2,687 (164)

The electrophysiological assessment of visual function in Multiple Sclerosis

open access: yesClinical Neurophysiology Practice, 2019
The assessment of vision is integral to the diagnosis and monitoring of patients with multiple sclerosis (MS). Visual electrophysiology, previously a critical investigation in patients with suspected MS, has in large part been supplanted by magnetic ...
Joshua L. Barton   +3 more
doaj   +1 more source

The effects of glaucoma on the latency of the multifocal visual evoked potential [PDF]

open access: yesBritish Journal of Ophthalmology, 2006
To determine the effect of glaucomatous damage on the latency of the multifocal visual evoked potential (mfVEP).Monocular mfVEPs were recorded from a glaucoma group (n = 50) defined by a glaucomatous disc and an abnormal visual field and a control group (n = 47).
C, Rodarte   +6 more
openaire   +2 more sources

Occipital Magnocellular VEP Non-linearities Show a Short Latency Interaction Between Contrast and Facial Emotion

open access: yesFrontiers in Human Neuroscience, 2020
The magnocellular system has been implicated in the rapid processing of facial emotions, such as fear. Of the various anatomical possibilities, the retino-colliculo-pulvinar route to the amygdala is currently favored. However, it is not clear whether and
Eveline Mu, David Crewther
doaj   +1 more source

Omega-3 fatty acids modify human cortical visual processing--a double-blind, crossover study. [PDF]

open access: yesPLoS ONE, 2011
While cardiovascular and mood benefits of dietary omega-3 fatty acids such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) are manifest, direct neurophysiological evidence of their effects on cortical activity is still limited.
Isabelle Bauer   +5 more
doaj   +1 more source

Reversible retinoschisis following high voltage electrical injury evaluated with optical coherence tomography and electrophysiology

open access: yesAmerican Journal of Ophthalmology Case Reports, 2020
Purpose: To report a carefully studied case of high voltage electrical injury of the retina and optic nerve with anatomically reversible retinoschisis. Methods: Observational case report.
Aleksey Mishulin   +3 more
doaj   +1 more source

Visual Field Defects and Multifocal Visual Evoked Potentials [PDF]

open access: yesArchives of Ophthalmology, 2002
To determine the relationship between spatially localized multifocal visual evoked potentials (mfVEPs) and Humphrey visual fields (HVFs) in patients with unilateral field defects.Humphrey visual fields and mfVEPs were obtained from 20 patients with unilateral field losses due to either ischemic optic neuropathy or glaucoma.
Donald C, Hood   +8 more
openaire   +2 more sources

Multifocal and pattern-reversal visual evoked potentials vs. automated perimetry frequency-doubling technology matrix in optic neuritis

open access: yesIndian Journal of Ophthalmology, 2013
Background: To compare the usefulness of the traditional pattern-reversal Visual Evoked Potentials (VEP) with multifocal VEP (mfVEP) and Frequency-Doubling Technology (FDT) perimetry in the evaluation of the ocular abnormalities induced by acute or ...
Marcella Nebbioso   +3 more
doaj   +1 more source

Multifocal Visual Evoked Potential mfVEP [PDF]

open access: yesJournal of Molecular and Genetic Medicine, 2014
The waveform of the localized mfVEP response changes in polarity across the horizontal meridian, which could be explained by the position of the generating cortical dipoles relative to the location of the recording electrodes [6]. With bipolar recording, the responses for stimulation of the upper and lower visual fields were reversed in polarity as ...
openaire   +1 more source

Anti-myelin oligodendrocyte glycoprotein antibodies in a girl with good recovery after five episodes of prior idiopathic optic neuritis

open access: yesAmerican Journal of Ophthalmology Case Reports, 2021
Purpose: To describe the clinical, radiological, immunological and electrophysiological features of a myelin oligodendrocyte glycoprotein (MOG)-IgG positive girl with five prior episodes of idiopathic bilateral optic neuritis (ON).
Mathias Falck Schmidt   +3 more
doaj   +1 more source

The multifocal visual evoked potential: An objective measure of visual fields?

open access: yesVision Research, 2005
We examined the effects of inter-modal attention and mental arithmetic on Humphrey visual field sensitivity and multifocal visual evoked potential (mfVEP) amplitude. Four normally sighted subjects (ages ranging from 24 to 58 years) participated in this study.
Seiple, William   +4 more
openaire   +2 more sources

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