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:4/17/2015)... Canada , April 17, 2015 ... growing security concerns, and technological advancement to drive ... until 2020   According ... Saudi Arabia Biometric Systems Market Forecast &  Opportunities, 2020 ", biometric systems ... is projected to register growth at CAGR of ...
(Date:4/14/2015)... April 14, 2015  HYPR Corp. today announced ... ® ) Alliance tm , an industry consortium ... commit to share technology and collaborate to deliver ... interoperable, more secure and private, and easier to ... verification that protects sensitive user information and eliminates ...
(Date:4/14/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... growing mobile commerce market, announces that its Wocket® smart ... Design Awards under the category  ,Product Design – Technology,. ... are part of a global multi-disciplinary awards program. The ... marketplace, industry and judging panel. Winners will be announced ...
Breaking Biology News(10 mins):Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3
... Bio-NMR Center at the VIB Department of Molecular and Cellular ... a scientific breakthrough that made it into the leading science ... possible to determine the dynamic structure of proteins. So Flemish ... activity of certain proteins involved in the stress physiology of ...
... 9, 2010) Defeating the flu is challenging because the ... of its genetic code, making it difficult for scientists ... a timely manner. Now, a University of Miami (UM) ... from Stony Brook University have developed a rapid and ...
... most pivotal steps in evolution-the transition from unicellular to ... commonly believed, found a globe-spanning collaboration of scientists led ... and the US Department of Energy,s Joint Genome Institute. ... algae Volvox carteri and its closest unicellular ...
Cached Biology News:Flemish researchers provide the first experimental evidence of dynamic allostery in protein regulation 2Scientists use computer algorithms to develop seasonal flu vaccines 2Origins of multicellularity: All in the family 2Origins of multicellularity: All in the family 3
(Date:4/17/2015)... , April 17, 2015  Guggenheim Securities, the ... today announced the hiring of William Tanner ... Mr. Tanner will start work at Guggenheim ... York office. "Bill brings a ... research, to our experienced and highly acclaimed healthcare team," ...
(Date:4/16/2015)... April 17, 2015 Spirax Sarco, ... services, released their newly designed, state-of-the-art website in ... facing website effectively promotes the Spirax Sarco brand, ... the information that a site visitor might be ... company capabilities, industries serviced, the latest company news, ...
(Date:4/16/2015)... 2015 Proove Biosciences , Inc. ... BIO Contest for the 2015 BIO International Convention. ... BIO International Convention will take place June 15-18 at ... Buzz of BIO contest, industry leaders will be voting ... the conference. The community voting period began on April ...
(Date:4/16/2015)... (PRWEB) April 16, 2015 The ... that the prestigious 2015 Borlaug CAST Communication Award ... member at Tuskegee University in Alabama. Award nominees ... material; public presentations; and/or the use of television, ... all three areas. As a specialist in the ...
Breaking Biology Technology:Guggenheim Securities Hires Biotech Analyst William Tanner in Expansion of Healthcare Coverage 2Spirax Sarco website has a new look 2Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 2Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 3The 2015 Borlaug CAST Communication Award Goes to Channapatna Prakash 2
... Overview , ... purification of a number of biological molecules. For example, antibodies may ... protein may be purified on the basis of its affinity for ... in a chromatographic column with a relatively large volume. This note ...
... Analysis of Gene Expression (SAGE) is a sequence-based approach to ... is a powerful tool, one of the more comprehensive methods ... leading to a profile of the expressed genes. 1 ... of genes expressed in a specimen. The ability to count ...
... , Introduction , ... is a genetic mapping technique that uses selective amplification of a subset of ... First developed for plant studies, AFLP analysis is used for a variety of ... genetic maps for new species. , ...
Cached Biology Technology:Use of ZipTip Pipette Tips for Microscale Affinity Mass Spectrometry 2Use of ZipTip Pipette Tips for Microscale Affinity Mass Spectrometry 3Serial Analysis of Gene Expression Using ABI PRISM DNA Sequencers and BigDye Terminators 2Serial Analysis of Gene Expression Using ABI PRISM DNA Sequencers and BigDye Terminators 3Serial Analysis of Gene Expression Using ABI PRISM DNA Sequencers and BigDye Terminators 4Serial Analysis of Gene Expression Using ABI PRISM DNA Sequencers and BigDye Terminators 5Amplified Fragment Length Polymorphism (AFLP) Analysis on Applied Biosystems Capillary Electrophoresis Systems 2Amplified Fragment Length Polymorphism (AFLP) Analysis on Applied Biosystems Capillary Electrophoresis Systems 3Amplified Fragment Length Polymorphism (AFLP) Analysis on Applied Biosystems Capillary Electrophoresis Systems 4Amplified Fragment Length Polymorphism (AFLP) Analysis on Applied Biosystems Capillary Electrophoresis Systems 5
... These 2800mL PYREX Fernbach-style culture flasks ... of the flask bottom to achieve maximal ... have a large marking spot., A wide ... these bottles including:, Polypropylene colored caps ...
... is designed to allow kanamycin/neomycin selection in ... combines a prokaryotic promoter (gb2) for expression ... with a eukaryotic promoter (PGK) for expression ... The prokaryotic promoter gb2 is a slightly ...
... template is designed to allow neomycin/kanamycin selection ... FRT-PGK-gb2-neo-FRT template encodes the neomycin/kanamycin resistance gene ... expression of kanamycin resistance in E.coli ... expression of neomycin resistance in mammalian cells. ...
... This CLS number is a ... easily match Cornings product number. ... please order under the old ... customer service for assistance. ID ...
Biology Products: