Results 21 to 30 of about 2,166,518 (277)

No Evidence of Reduced Contrast Sensitivity in Migraine-with-Aura for Large, Narrowband, Centrally Presented Noise-Masked Stimuli

open access: yesVision, 2021
Individuals with migraine aura show differences in visual perception compared to control groups. Measures of contrast sensitivity have suggested that people with migraine aura are less able to exclude external visual noise, and that this relates to ...
Jordi M. Asher   +2 more
doaj   +1 more source

Visual stimulation and frequency of focal neurological symptoms engage distinctive neurocognitive resources in migraine with aura patients: a study of resting-state functional networks

open access: yesThe Journal of Headache and Pain, 2022
Introduction Several functional neuroimaging studies on healthy controls and patients with migraine with aura have shown that the activation of functional networks during visual stimulation is not restricted to the striate system, but also includes ...
Gianluca Coppola   +9 more
doaj   +1 more source

Magnetic Suppression of Perceptual Accuracy Is Not Reduced in Visual Snow Syndrome

open access: yesFrontiers in Neurology, 2021
Objective: Patients with visual snow syndrome (VSS) suffer from continuous (“TV snow-like”) visual disturbance of unknown pathoetiology. In VSS, changes in cortical excitability in the primary visual cortex and the visual association cortex are discussed,
Ozan E. Eren   +6 more
doaj   +1 more source

Aura-like features and photophobia in sightless migraine patients

open access: yesArquivos de Neuro-Psiquiatria, 2014
Migraine is a central nervous system disorder frequently expressed with paroxysmal visual dysfunctions. Objective To test the hypothesis that normal visual input is vital for the migrainous aura and photophobia.
Greice Cardoso de Carvalho Silva   +2 more
doaj   +1 more source

British satirical poems and cartoons about Louis-Napoleon Bonaparte: Deconstructing authenticity and aura

open access: yes, 2021
This article draws on opposing cultural concepts of authenticity and imitation, combined with Walter Benjamin’s notion of the aura, to examine the self-promotion of Louis-Napoleon Bonaparte as successor of Napoleon I. The article confronts Louis-Napoleon’
Martens, Britta
core   +1 more source

Migraine with aura attacks overriding dreams

open access: yesHeadache Medicine, 2011
While the anatomical pathways involved in migraine with aura are near to be completely known, those involved in dreaming remain less studied. We aimed to describe two cases of migraine with visual aura, whose migraine auras would override their dreams ...
Pedro André Kowacs   +4 more
doaj   +1 more source

Validation of Aura Microwave Limb Sounder HCl measurements [PDF]

open access: yes, 2008
The Earth Observing System (EOS) Microwave Limb Sounder (MLS) aboard the Aura satellite has provided daily global HCl profiles since August 2004. We provide a characterization of the resolution, random and systematic uncertainties, and known issues for ...
L. E. Christensen   +67 more
core   +1 more source

Migraine aura-like symptoms at onset of stroke and stroke-like symptoms in migraine with aura

open access: yesFrontiers in Neurology, 2022
Background and objectivesIn general, suddenly occurring neurological deficits, i.e., negative neurological symptoms, are considered symptoms of focal cerebral ischemia, while positive irritative symptoms with gradual onset are viewed as the ...
Adrian Scutelnic   +12 more
doaj   +1 more source

Migraine with visual aura is a risk factor for incident atrial fibrillation: A cohort study. [PDF]

open access: yesNeurology, 2018
Objective Migraine with visual aura is associated with cardioembolic stroke risk. The aim of this study was to test association between migraine with visual aura and atrial fibrillation (AF), in the Atherosclerosis Risk in Communities study.
Sen S   +10 more
europepmc   +2 more sources

Sensory migraine aura is not associated with structural grey matter abnormalities

open access: yesNeuroImage: Clinical, 2016
Migraine with aura (MA) is characterized by cortical dysfunction. Frequent aura attacks may alter cerebral cortical structure in patients, or structural grey matter abnormalities may predispose MA patients to aura attacks.
Anders Hougaard   +6 more
doaj   +1 more source

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