| Title |
Visual Snow—Persistent Positive Visual Phenomenon Distinct from Migraine Aura
|
|---|---|
| Published in |
Current Pain and Headache Reports, May 2015
|
| DOI | 10.1007/s11916-015-0497-9 |
| Pubmed ID | |
| Authors |
Christoph J. Schankin, Peter J. Goadsby |
| Abstract |
Patients with visual snow complain of uncountable flickering tiny dots in the entire visual field similar to the view of a badly tuned analogue TV channel (TV snow). The symptoms are often continuous and can persist over years. This condition is grouped among the persistent visual phenomena in migraine, although it clinically presents a unique entity distinct from persistent migraine aura or migraine aura status. Here, we review the recent literature leading to the identification of the visual snow syndrome. The additional visual and non-visual symptoms are described in detail, and criteria are presented for future studies. Using these criteria, the relationship to migraine and typical migraine aura was recently evaluated. Further, patients with visual snow differ from controls in respect of hypermetabolism in the supplementary visual cortex (lingual gyrus). This provides evidence that visual snow, despite being purely subjective in the individual patient, has a clear biological basis. The area of hypermetabolism overlaps with the functional correlates of photophobia in migraine supporting the close relationship of migraine and visual snow. |
Mendeley readers
The data shown below were compiled from readership statistics for 46 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Netherlands | 1 | 2% |
| Unknown | 45 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 8 | 17% |
| Student > Master | 5 | 11% |
| Student > Bachelor | 4 | 9% |
| Student > Postgraduate | 4 | 9% |
| Other | 3 | 7% |
| Other | 8 | 17% |
| Unknown | 14 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 17 | 37% |
| Neuroscience | 4 | 9% |
| Unspecified | 1 | 2% |
| Biochemistry, Genetics and Molecular Biology | 1 | 2% |
| Computer Science | 1 | 2% |
| Other | 7 | 15% |
| Unknown | 15 | 33% |
Attention Score in Context
This research output has an Altmetric Attention Score of 10. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 February 2023.
All research outputs
#3,192,089
of 24,160,198 outputs
Outputs from Current Pain and Headache Reports
#166
of 829 outputs
Outputs of similar age
#40,747
of 269,838 outputs
Outputs of similar age from Current Pain and Headache Reports
#2
of 17 outputs
Altmetric has tracked 24,160,198 research outputs across all sources so far. Compared to these this one has done well and is in the 86th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 829 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.6. This one has done well, scoring higher than 79% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 269,838 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 84% of its contemporaries.
We're also able to compare this research output to 17 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 88% of its contemporaries.