scholarly journals Symptoms related to the visual system in migraine

F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 1219 ◽  
Author(s):  
Robin M. van Dongen ◽  
Joost Haan
Keyword(s):  
Visual System ◽  
Headache Disorder ◽  
Migraine Aura ◽  
Visual Symptoms ◽  
Short Overview ◽  
Ophthalmoplegic Migraine ◽  
Migraine Pathophysiology ◽  
Visual Blurring ◽  
The Relationship

Migraine is a common headache disorder characterized by often-severe headaches that may be preceded or accompanied by a variety of visual symptoms. Although a typical migraine aura is not difficult to diagnose, patients with migraine may report several other visual symptoms, such as prolonged or otherwise atypical auras, “visual blurring”, “retinal migraine”, “ophthalmoplegic migraine”, photophobia, palinopsia, and “visual snow”. Here, we provide a short overview of these symptoms and what is known about the relationship with migraine pathophysiology. For some symptoms, the association with migraine is still debated; for other symptoms, recent studies indicate that migraine mechanisms play a role.

Nonlinear Analysis of Visual Evoked Potentials Elicited by Color Stimulation

1997 ◽  
Vol 36 (04/05) ◽  
pp. 315-318 ◽  
Author(s):  
K. Momose ◽  
K. Komiya ◽  
A. Uchiyama
Keyword(s):  
Visual System ◽  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Normal Subjects ◽  
Second Order ◽  
First Order ◽  
The Relationship ◽  
Perceived Color ◽  
Second Order Nonlinearity ◽  
Visual Evoked

Abstract:The relationship between chromatically modulated stimuli and visual evoked potentials (VEPs) was considered. VEPs of normal subjects elicited by chromatically modulated stimuli were measured under several color adaptations, and their binary kernels were estimated. Up to the second-order, binary kernels obtained from VEPs were so characteristic that the VEP-chromatic modulation system showed second-order nonlinearity. First-order binary kernels depended on the color of the stimulus and adaptation, whereas second-order kernels showed almost no difference. This result indicates that the waveforms of first-order binary kernels reflect perceived color (hue). This supports the suggestion that kernels of VEPs include color responses, and could be used as a probe with which to examine the color visual system.

scholarly journals Headache in Patients With Pituitary Lesions: A Longitudinal Cohort Study

Neurosurgery ◽  
2015 ◽  
Vol 78 (3) ◽  
pp. 316-323 ◽  
Author(s):  
Paul Rizzoli ◽  
Sherry Iuliano ◽  
Emma Weizenbaum ◽  
Edward Laws
Keyword(s):  
Primary Headache ◽  
Headache Disorder ◽  
Pituitary Surgery ◽  
Secondary Headache ◽  
Exact Nature ◽  
Questionnaire Response ◽  
Headache Diagnosis ◽  
Transsphenoidal Pituitary Surgery ◽  
The Relationship

Abstract BACKGROUND: Headache is a presenting feature in 37% to 70% of patients with pituitary tumor. Other pituitary lesions may also present with headache, and together these lesions account for about 20% of all primary brain lesions. Although pituitary lesions have been associated with headache, the exact nature of the relationship remains undefined. It is not always clear whether the presenting headache is an unrelated primary headache, a lesion-induced aggravation of a preexisting primary headache, or a separate secondary headache related to the lesion. OBJECTIVE: To characterize headache in patients referred to a multidisciplinary neuroendocrine clinic with suspected pituitary lesions and to assess changes in headache in those who underwent surgery. METHODS: We used a self-administered survey of headache characteristics completed by patients upon presentation and after any pituitary surgical procedure. RESULTS: One hundred thirty-three participants completed the preoperative questionnaire (response rate of 99%). The overall prevalence of headache was 63%. Compared to patients without headache, the group with headache was more likely to be female (P = .001), younger (P = .001), and to have had a prior headache diagnosis (P < .001). Seventy-two percent of patients reported headache localized to the anterior region of the head. Fifty-one patients with headache underwent transsphenoidal pituitary surgery. Headache was not associated with increased odds of having surgery (odds ratio, 0.90). At 3 months, 81% of surgically treated patients with headache who completed the postoperative questionnaire (21/26) reported improvement or resolution of headaches. No patient who completed the postoperative questionnaire (44/84) reported new or worsened headache. CONCLUSION: Frequent, disabling headaches are common in patients with pituitary lesions referred for neuroendocrine consultation, especially in younger females with a preexisting headache disorder. Surgery in this group was associated with headache improvement or resolution in the majority and was not found to cause or worsen headaches. Suggestions for revision of the International Classification of Headache Disorders diagnostic criteria pertaining to pituitary disorders are supported by these findings.

Clinical features of migraine aura: Results from a prospective diary-aided study

Cephalalgia ◽  
2016 ◽  
Vol 37 (10) ◽  
pp. 979-989 ◽  
Author(s):  
Michele Viana ◽  
Grazia Sances ◽  
Mattias Linde ◽  
Natascia Ghiotto ◽  
Elena Guaschino ◽  
...  
Keyword(s):  
Clinical Features ◽  
Migraine With Aura ◽  
Reliable Data ◽  
Visual Features ◽  
Clinical Aspects ◽  
Migraine Aura ◽  
Visual Symptom ◽  
Visual Symptoms ◽  
Detailed Evaluation ◽  
Temporal Succession

Background A detailed evaluation of migraine aura symptoms is crucial for classification issues and pathophysiological discussion. Few studies have focused on the detailed clinical aspects of migraine aura. Methods We conducted a prospective diary-based study of migraine aura features including presence, quality, laterality, duration of each aura symptom, their temporal succession; presence of headache and its temporal succession with aura. Results Seventy-two patients completed the study recording the characteristics of three consecutive auras ( n = 216 auras). Visual symptoms occurred in 212 (98%), sensory symptoms in 77 (36%) and dysphasic symptoms in 22 (10%). Most auras had more than one visual symptom (median 2, IQR 1–3, range 1–4). The majority of patients (56%) did not report a stereotyped aura on the three attacks with respect to visual features, the combination and/or temporal succession of the three aura symptoms. Fifty-seven percent of patients also reported a different scenario of temporal succession between aura and headache in the three attacks. Five per cent of aura symptoms were longer than four hours. Conclusion These findings show a high inter- and intravariability of migraine with aura attacks. Furthermore, they provide reliable data to enrich and clarify the spectrum of the aura phenotype.

Frequency of Eidetic Imagery among Hydrocephalic Children

1976 ◽  
Vol 43 (1) ◽  
pp. 187-194 ◽  
Author(s):  
Erol F. Giray ◽  
Warren M. Altkin ◽  
Allan G. Barclay
Keyword(s):  
Visual System ◽  
Brain Damage ◽  
Neural Development ◽  
Mentally Retarded ◽  
Familial Cases ◽  
Arrested Hydrocephalus ◽  
Mentally Retarded Children ◽  
The Relationship

A sample of 75 mentally retarded children, including 14 with arrested hydrocephalus, 39 with other diagnoses of brain damage, and 22 familial cases, was tested for eidetic imagery, in order to clarify the relationship between eidetic imagery and neuropathology. The hypotheses tested were that the frequency of eidetic imagery is higher among hydrocephalics than among other brain-damaged children and higher among hydrocephalics than among familials. The data confirmed the hypotheses and are interpreted as supporting a theory in which particular structural impairments in the visual system may delay neural development and result in a persistence of eidetic imagery.

Phenotype of migraine headache and migraine aura of Richard Wagner

Cephalalgia ◽  
2014 ◽  
Vol 34 (12) ◽  
pp. 1004-1011 ◽  
Author(s):  
Anna Göbel ◽  
Carl H Göbel ◽  
Hartmut Göbel
Keyword(s):  
Social Life ◽  
Migraine Headache ◽  
Headache Disorder ◽  
Severe Headache ◽  
Richard Wagner ◽  
Original Writings ◽  
Migraine Aura ◽  
The World ◽  
The Individual ◽  
German Composer

Background The headache phenotype and neurological symptoms of the German composer Richard Wagner (1813–1883), whose music dramas count towards the most frequently performed operas across the world, are previously undocumented. Methods Richard Wagner’s own descriptions of his headache symptoms in his original writings and letters are investigated, as well as the complete diary records of his second wife, Cosima Wagner. Results There are manifold indications that Richard Wagner suffered from a severe headache disorder, which fulfils most likely the diagnostic criteria of migraine without aura and migraine with aura of ICHD-3 beta. Conclusions Richard Wagner’s life and opus can help to better understand the burden and suffering caused by migraine with its severe effects on the individual, familial and social life, the culture and community.

scholarly journals Perception and misperception of surface opacity

2017 ◽  
Vol 114 (52) ◽  
pp. 13840-13845 ◽  
Author(s):  
Phillip J. Marlow ◽  
Juno Kim ◽  
Barton L. Anderson
Keyword(s):  
Visual System ◽  
Fundamental Problem ◽  
Surface Orientation ◽  
The Body ◽  
Local Surface ◽  
Significant Information ◽  
Scene Structure ◽  
The Relationship ◽  
Opaque Surface ◽  
Insight Into

A fundamental problem in extracting scene structure is distinguishing different physical sources of image structure. Light reflected by an opaque surface covaries with local surface orientation, whereas light transported through the body of a translucent material does not. This suggests the possibility that the visual system may use the covariation of local surface orientation and intensity as a cue to the opacity of surfaces. We tested this hypothesis by manipulating the contrast of luminance gradients and the surface geometries to which they belonged and assessed how these manipulations affected the perception of surface opacity/translucency. We show that (i) identical luminance gradients can appear either translucent or opaque depending on the relationship between luminance and perceived 3D surface orientation, (ii) illusory percepts of translucency can be induced by embedding opaque surfaces in diffuse light fields that eliminate the covariation between surface orientation and intensity, and (iii) illusory percepts of opacity can be generated when transparent materials are embedded in a light field that generates images where surface orientation and intensity covary. Our results provide insight into how the visual system distinguishes opaque surfaces and light-permeable materials and why discrepancies arise between the perception and physics of opacity and translucency. These results suggest that the most significant information used to compute the perceived opacity and translucency of surfaces arise at a level of representation where 3D shape is made explicit.

Aura status: A not so frequent aura

Cephalalgia ◽  
2014 ◽  
Vol 34 (14) ◽  
pp. 1150-1162 ◽  
Author(s):  
Ana Alagoa João ◽  
Tomas B Goucha ◽  
Isabel P Martins
Keyword(s):  
Systematic Review ◽  
Retrospective Analysis ◽  
Clinical Features ◽  
Migraine With Aura ◽  
Migraine Aura ◽  
Visual Symptoms ◽  
Research Criteria ◽  
Detailed Diagnosis

Background Migraine aura status is a variety of migraine aura with unvalidated research criteria. Aim and methods We conducted a systematic review of published cases and a retrospective analysis of 500 cases of migraine with aura to evaluate the applicability and clinical features of ICHD-III beta criteria, compared to a more liberal definition for its diagnosis: ≥3 aura episodes for up to three consecutive days. Results Many publications under this title correspond to persistent or formerly designated prolonged auras. Nine cases fulfilled ICHD-III beta status criteria. In our series, either 1.7% or 4.2% cases fulfilled ICDH-III beta or our definition, respectively. Regardless of the criteria, aura status patients were older at onset of status than those with typical aura, had a predominance of visual symptoms, normal neuroimaging and no sequelae. Status recurred in a few. Conclusion Both criteria identify a similar population in terms of age, gender, main symptoms, imaging and outcome. Since patients with closely recurring auras might raise the same approach independently of the criteria, the use of more liberal criteria will allow more cases for detailed diagnosis and therapeutic analysis, eventually leading to the identification of subtypes.

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