Results 61 to 70 of about 2,631,634 (300)

Visual Evoked Potentials in Neuromyelitis Optica Spectrum Disorders

open access: yesJournal of Central Nervous System Disease, 2021
Background Neuromyelitis optica spectrum disorders (NMOSDs) are rare antibody-mediated disorders of the central nervous system, with a predilection for the spinal cord and optic nerves.
Otto Jesus Hernandez Fustes MD, PhD   +5 more
doaj   +1 more source

The cost of space independence in P300-BCI spellers. [PDF]

open access: yes, 2013
Background: Though non-invasive EEG-based Brain Computer Interfaces (BCI) have been researched extensively over the last two decades, most designs require control of spatial attention and/or gaze on the part of the user. Methods: In healthy adults, we
Howard Bowman   +11 more
core   +1 more source

Natural Frequencies of Levodopa‐Induced Dyskinesia in Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Abnormal involuntary movements, known as dyskinesias, are common complications of levodopa treatment in patients with Parkinson's disease and can significantly impair quality of life. The underlying pathophysiology remains unclear, and current therapeutic options are limited.
Ioannis U. Isaias   +3 more
wiley   +1 more source

Clinical And Electrophysiological Correlation In Patient With Optic Neuritis

open access: yesRevista Cubana de Investigaciones Biomédicas, 2019
A descriptive and traverse study was performed in patients with diagnosis of optic neuritis,  that attended  to the neuro ophthalmology service of the ophthalmological center, at the Santiago General Hospital "Dr.
Lianne Alicia Chang Arraño   +3 more
doaj  

[Visual evoked potential].

open access: yesNo to hattatsu = Brain and development, 1989
Under the pathological conditions, the VEP may show changes in amplitude, latency, or waveform in one or more of its components. The major advantage of the pattern reversal VEP over the flash VEP lies in smaller variability in the waveform and latency of its components in the healthy population. The flash VEP is, however, particularly useful to infants
openaire   +2 more sources

Visually induced analgesia: seeing the body reduces pain [PDF]

open access: yes, 2009
Given previous reports of strong interactions between vision and somatic senses, we investigated whether vision of the body modulates pain perception. Participants looked into a mirror aligned with their body midline at either the reflection of their own
Longo, Matthew R.   +9 more
core   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park   +5 more
wiley   +1 more source

VISUAL EVOKED POTENTIAL IN NON-INSULIN DEPENDENT DIABETES MELLITUS PATIENTS WITHOUT DIABETIC RETINOPATHY

open access: yesJournal of University Medical & Dental College, 2017
Purpose: Diabetes mellitus has multiple complications involving many organs like eyes, brain, heart and kidneys ets. In visual complications retinopathies and neuropathies are most important.
Nawaz Cheema, Saba Anwar, Erum Ehsan
doaj  

Influence of visual angle on pattern reversal visual evoked potentials

open access: yesOman Journal of Ophthalmology, 2014
Purpose: The aim of this study was to find whether the visual evoked potential (VEP) latencies and amplitude are altered with different visual angles in healthy adult volunteers or not and to determine the visual angle which is the optimum and most ...
Ruchi Kothari   +4 more
doaj   +1 more source

Temporal Interference Stimulation of Centromedian‐Parafascicular Complex in Disorders of Consciousness: A Pilot Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Treatment of disorders of consciousness (DoC) remains a major clinical challenge, and noninvasive, targeted modulation of deep brain structures has emerged as a promising therapeutic strategy. We aimed to evaluate the feasibility/safety and preliminary effects of thalamic temporal interference stimulation (TIS) targeting centromedian‐
Gengyao Hu   +7 more
wiley   +1 more source

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