Navigation Links
Migraine sufferers: More difficulty tuning out visual stimuli?
Date:4/8/2010

Rockville, MD When people feel the onset of a migraine headache, they may head to a dark, quiet room to rest. This instinct may be sound: A new study suggests that even without the headache, migraine sufferers may process visual cues better in an environment with few visual distractions.

In a study published in the April issue of Investigative Ophthalmology & Visual Science ("Visual Noise Selectively Degrades Vision in Migraine"), researchers from Scotland's Glasgow Caledonian University asked migraine sufferers to pick out a small disk of light amid visual noise, an effect similar to the black-and-white snow on an off-air television. Without the visual noise, people prone to migraine could identify the light disk about as well as the control group. When the noise was added, migraine sufferers ("migraineurs") performed significantly worse.

"Our visual environment is generally very busy and full of objects, many of which are important at some times but not at others. Normally, we can attend effortlessly to those items of interest and often do not even notice others," said lead researcher Doreen Wagner, Diplom-Ingenieur (FH) of Optometry, PhD student in Vision Science. "Migraineurs may be at a disadvantage when searching for details, especially in cluttered environments."

About a third of migraine sufferers experience neurological disturbances before a headache begins. These auras are frequently visual and can appear as shimmering lights or zig-zag patterns that move across the field of vision. The study showed that migraine sufferers with auras were the most adversely affected by the addition of visual noise.

Wagner said a current theory about migraines is that nerve cells in the brain of migraineurs are excitable and when exposed to certain triggers, the increased excitability may cause whole clusters of nerve cells to become overactive, similar to a spasm, and bring on the headache. In this study, "We believe that
'/>"/>

Contact: Jo Olson
jolson@arvo.org
Association for Research in Vision and Ophthalmology
Source:Eurekalert

Page: 1 2

Related biology news :

1. Concentrating on different aspects of pain leads to breakthrough in migraine genetics
2. Treating chronic pain, migraine & muscle spasticity through inhibition of neurotransmitter glutamate
3. Overuse of narcotics and barbiturates may make migraine worse
4. OptiNoses novel intranasal sumatriptan product highly effective in treating migraines
5. MIT: Why we have difficulty recognizing faces in photo negatives
6. Fine-tuning lasers to destroy blood-borne diseases like AIDS
7. Tuning in on cellular communication in the fruit fly
8. Brains timing linked with timescales of the natural visual world
9. The human brain: Detective of auditory and visual change
10. Researchers visualize complex pigment mixtures in living cells
11. Visual technology enables brain to learn in new ways
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/2/2015)... Calif. , March 2, 2015 ... leading developer of human interface solutions, today announced ... that is designed to enable rapid and secure ... ID™ module for gaming is a turnkey solution ... the ability to quickly integrate fingerprint ID solutions ...
(Date:3/2/2015)... 2015  Businesses have a new option for ... Rankins Enterprises has announced the launch of a ... for businesses to protect their customers, personal data, ... Beconux is a biometric transaction processing system ... to an ATM machine, the new system fuses ...
(Date:3/2/2015)...   Neurotechnology , a provider of high-precision biometric, ... Software Development Kit (SDK). The SentiGaze algorithm enables ... webcams to track eye movements and generate heatmaps based ... can be used for applications such as analysis of ... SDK can also be used to develop interfaces for ...
Breaking Biology News(10 mins):Synaptics Unveils New Fingerprint ID Solution for Gamers 2Synaptics Unveils New Fingerprint ID Solution for Gamers 3Personal Data Protection Company Launches New Product 2Neurotechnology Releases SentiGaze SDK for Eye Movement Tracking Using Ordinary Webcams 2Neurotechnology Releases SentiGaze SDK for Eye Movement Tracking Using Ordinary Webcams 3
... clean, local-source energy. Faster, more reliable technologies and ... Medical care tailored to your DNA, or neural ... and injuries. Five University of Pittsburgh faculty ... and technology as part of Faculty Early Career ...
... technology, researchers led by a Weill Cornell Medical College scientist ... about half of all prostate cancers. Estrogen-linked signaling helps ... by a chromosomal translocation, which in turn results in the ... cancers harbor a common recurrent gene fusion, and we believe ...
... life to thrive: temperature, or sunlight? The answer ... online this week in PNAS Early Edition, the explosion ... do with warmth than with light. The diversity ... strongly related to temperature, said University of Southern California ...
Cached Biology News:Pitt faculty receive awards to explore next-generation technologies 2Pitt faculty receive awards to explore next-generation technologies 3Pitt faculty receive awards to explore next-generation technologies 4Estrogen helps drive distinct, aggressive form of prostate cancer 2Estrogen helps drive distinct, aggressive form of prostate cancer 3What makes life go at the tropics? 2
(Date:2/27/2015)... Calif. , Feb. 27, 2015  Pharmacyclics, ... that longer-term toxicology studies for its newly developed ... or RA, have been completed. The results of ... U.S. Food and Drug Administration. The feedback received ... of the ongoing first-in-human study. Additional preclinical work ...
(Date:2/27/2015)... (PRWEB) February 27, 2015 The ... system (Nexera UC) can sequentially analyze up to ... combined with high-sensitivity detection of targets by mass ... designed to fulfill the measurement requirements of a ... food products, drug delivery and search for disease ...
(Date:2/27/2015)... 27, 2015 Cytokinetics, Incorporated (Nasdaq: CYTK) ... 28 with patients and health care advocates in the ... Disease Day®. Rare Disease Day is dedicated to ... to the special challenges faced by patients with rare ... is proud to stand alongside patients and caregivers representing ...
(Date:2/26/2015)... 26, 2015 On behalf of biotech client ... Wilentz, Goldman & Spitzer, P.A. (Wilentz) secured a ... Genewiz Inc. in excess of $10 million. The jury ... secrets, and that it improperly hired one or more ... motions for judgment notwithstanding the verdict, a new trial, ...
Breaking Biology Technology:Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 2Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 3Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 6Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3
... Marinus Pharmaceuticals, a,developer of specialty therapeutics to treat ... Krayacich as president,and chief executive officer. Mr. Krayacich ... business development for ganaxolone, an adult and,pediatric epilepsy ... candidate., Mr. Krayacich brings more than 20 ...
... (Amex: NBS ),announced today that the new Southern Florida ... Miami, is targeted to open in,September. The center is being ... of this center, NeoStem has secured a key geographic,stronghold in ... as well as a,growing sophisticated South American presence., Chester ...
... Company hits key insulin and Apo AI(Milano), ... 5 /PRNewswire-FirstCall/ - SemBioSys Genetics Inc.,(TSX:SBS), a biotechnology ... and cardiovascular diseases, today announced its,2008 second quarter ... Insulin Program, - Submitted an ...
Cached Biology Technology:Marinus Pharmaceuticals Appoints John Krayacich as President and Chief Executive Officer 2Marinus Pharmaceuticals Appoints John Krayacich as President and Chief Executive Officer 3Marinus Pharmaceuticals Appoints John Krayacich as President and Chief Executive Officer 4NeoStem Forges Ahead in Its Plan to Open Adult Stem Cell Collection Centers in Key Locations that Can Serve as Hubs to Service Clients Nationwide 2NeoStem Forges Ahead in Its Plan to Open Adult Stem Cell Collection Centers in Key Locations that Can Serve as Hubs to Service Clients Nationwide 3SemBioSys announces second quarter 2008 financial and operational results 2SemBioSys announces second quarter 2008 financial and operational results 3SemBioSys announces second quarter 2008 financial and operational results 4SemBioSys announces second quarter 2008 financial and operational results 5SemBioSys announces second quarter 2008 financial and operational results 6SemBioSys announces second quarter 2008 financial and operational results 7SemBioSys announces second quarter 2008 financial and operational results 8SemBioSys announces second quarter 2008 financial and operational results 9SemBioSys announces second quarter 2008 financial and operational results 10SemBioSys announces second quarter 2008 financial and operational results 11SemBioSys announces second quarter 2008 financial and operational results 12SemBioSys announces second quarter 2008 financial and operational results 13
... siRNA and miRNA Isolation ... efficiency recover mRNA and can result in ... RNAs. Ambions mirVana miRNA Isolation Kit purifies ... single- and double-stranded. Through an enrichment procedure ...
ABI Plant AFLP Kits • EcoRI-ACA AFLP Amplification Primers...
...
Request Info...
Biology Products: