Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New ’eye movement’ test may help treat fetal alcohol syndrome

14.11.2005


Tool is more objective, accurate in identifying children affected by



A simple test that measures eye movement may help to identify children with Fetal Alcohol Spectrum Disorder (FASD) and ultimately lead to improved treatment for the condition, say Queen’s University researchers.

At present there are no objective diagnostic tools that can be used to distinguish between children with FASD – which affects approximately one per cent of children in Canada – and those with other developmental disorders such as Attention-Deficit Hyperactivity Disorder (ADHD).


Researcher James Reynolds and graduate student Courtney Green, of the Department of Pharmacology and Toxicology and the Centre for Neuroscience Studies, will present their findings next week at the annual meeting of the international Society for Neuroscience in Washington, D.C.

"Having a set of tests that can be used as diagnostic tools for fetal alcohol syndrome and all of the other behavioural disorders classified under the broader term fetal alcohol spectrum disorder is tremendously valuable," says Dr. Reynolds, who is part of a $1.25-million Queen’s-led team focusing on fetal alcohol syndrome, funded by the Canadian Institutes of Health Research. "Now we can begin to identify specific deficits in these children."

Many of the behavioural tests used to assess children with FASD are geared to white, middle-class English-speaking people, notes Ms Green. "The biggest problem [in current tests] is cultural insensitivity," she says. "By measuring eye movement we can cut across cultural barriers and provide objectivity in identifying the disorder."

In a pilot study involving 25 girls and boys aged eight to 12, the Queen’s team found that children with FASD have specific brain abnormalities which can be measured with eye movement testing. Defined as "birth defects resulting from a mother’s consumption of alcohol during pregnancy", fetal alcohol syndrome is associated with hyperactivity, difficulty in learning and deficits in memory, understanding and reasoning, as well as problems dealing with stressful situations.

The next stage of the Queen’s research will be to make the eye movement test mobile and transport it to targeted areas, such as northern and rural parts of Ontario, where FASD is believed to be more prevalent. The researchers envision this as a multi-centre project, in which other participants will work from the same set of pooled data.

"There is a clear need to develop new tools that can be used to reliably and objectively measure the brain injury of FASD," says Dr. Reynolds. "Ideally, these tools need to be mobile, inexpensive, and easy to use, for both diagnosis and the long-term evaluation of therapeutic interventions. Eye movements are ideally suited for this purpose."

Using the new functional MRI facility at Queen’s, the team will then be able to measure differences in brain activity between children with fetal alcohol syndrome and those with other developmental disorders such as ADHD.

"Having access to this facility will have a huge impact on our research program," Dr. Reynolds says. "It allows us to create an integrated research strategy for carrying out studies to provide functional brain imaging data that can be directly related to neuro-behavioural deficits in individual children with FASD."

Nancy Dorrance | EurekAlert!
Further information:
http://www.queensu.ca

More articles from Health and Medicine:

nachricht NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures
17.11.2017 | National Institute of Standards and Technology (NIST)

nachricht High speed video recording precisely measures blood cell velocity
15.11.2017 | ITMO University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>