Results 211 to 220 of about 11,182 (245)

Relating Photophobia, Visual Aura, and Visual Triggers of Headache and Migraine

Headache: The Journal of Head and Face Pain, 2019
Objective This study investigated a potential association between visual factors and symptoms related to migraine. It was predicted that photophobia and visual aura would be positively associated with interictal light sensitivity and visual headache triggers (flicker, glare, and eyestrain), and that these 2 ...
Daniel P, Hayne, Paul R, Martin
openaire   +2 more sources

Illusory Splitting as Visual Aura Symptom in Migraine

Cephalalgia, 2000
Illusory splitting was illustrated as a visual migraine aura symptom in six of 562 Migraine Art pictures. In this type of illusion, objects or persons appear to be split, along fracture lines of varying form and orientation, into two or more parts that may be displaced and separated from each other. The illusion is strongly associated with the presence
K Podoll
exaly   +3 more sources

[Migraine with visual aura].

Journal francais d'ophtalmologie, 2017
Migraine with visual aura is marked by recurrent episodes of transient visual disturbance, often followed by headaches. Its pathophysiology has not been fully understood, but visual auras might be related to a self-propagating wave of cortical depolarization called "cortical spreading depression", triggering a trigemino-vascular "storm" ultimately ...
S, Bidot, D, Biotti
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Visual Auras, Hallucinations, and Illusions

2019
Visual hallucinations are perceptions that occur in the absence of a corresponding external visual stimulus, whereas visual illusions are misinterpretations of an external visual stimulus. Migraine visual aura is a common cause of transient visual hallucinations. Similar symptoms can occur in patients who have occipital lesions or as a manifestation of
Matthew J. Thurtell, Robert L. Tomsak
openaire   +1 more source

Visual Cortex Excitability in Migraine With and Without Aura

Headache: The Journal of Head and Face Pain, 2001
Objectives.—Previous research using transcranial magnetic stimulation has produced equivocal findings concerning thresholds for the generation of visual phosphenes in migraine with aura. These studies were methodologically varied and did not systematically address cortical excitability in migraine without aura.
Mulleners, Wim M., Chronicle, Edward P., Palmer, Joanne E., Koehler, Peter J., Vredeveld, Jan-Willem   +4 more
openaire   +2 more sources

Effects of Visual Pathway Lesions on the Visual Aura of Migraine

Cephalalgia, 2009
The aim was to to determine if the visual aura of migraine is altered by disease of the afferent visual pathways and if visual aura changes are associated with pre- or postgeniculate lesions. Functional neuroimaging during migraine demonstrates primary visual/extrastriate cortex as an anatomical substrate of visual aura. Neuro-ophthalmological records (
openaire   +2 more sources

Vector analysis of visual evoked potentials in migraineurs with visual aura

Clinical Neurophysiology, 2003
To assess the capability of vector analysis of visual evoked potentials (VEPs) for revealing alterations in posterior visual pathways in migraineurs with visual aura.VEPs to pattern reversal (PR) and LED goggle stimulation were obtained in 23 patients suffering from migraine with visual aura, in an orthogonal Fpz-Oz and T3-T4 montage and displayed as a
P, Coutin-Churchman, A, Padrón de Freytez   +1 more
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[Migraine with visual aura: visual aura pictured by the patient].

Neurologia i neurochirurgia polska, 2007
The most frequent type of migraine aura is the typical one in which the most frequently occurring aura type are visual phenomena. Types of visual aura may be different. Scintillating scotoma, fortification zigzags (teichopsiae), fragmentation of the visual image are typical illusions in visual aura.
openaire   +1 more source

Persistent aura, visual snow, and other visual symptoms

In neurology practice, it is common to encounter a variety of visual complaints. Historically, in the absence of known ocular pathology, epilepsy, or insult to the central nervous system, positive symptoms were assumed to be migrainous in origin. This assumption was sometimes made even in the absence of a history of migraine.
Carrie E, Robertson, Kathleen B, Digre
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Pattern‐Reversal Visual Evoked Potentials in Migraineurs With or Without Visual Aura

Headache: The Journal of Head and Face Pain, 1997
To determine the possible electrophysiologic changes in migraineurs with or without visual aura, we investigatedpattern‐reversal visual evoked potentials in 39 patients. We compared the mean P100 latency and amplitude of 16patients with aura, 23 patients without aura, and 17 age‐ and sex‐matched normal subjects.
SENER, HO, HAKTANIR, İklim, Demirci, Serpil   +2 more
openaire   +4 more sources