Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Drivers with Parkinson’s Disease at Higher Risk of Crashes in Low Visibility

06.10.2009
Drivers with mild to moderate Parkinson’s disease may be at higher risk of crashes on foggy days and other times of low visibility. The research, involving a driving simulation test, is published in the October 6, 2009, print issue of Neurology®, the medical journal of the American Academy of Neurology.

In addition to affecting movement, Parkinson’s disease affects visual skills, such as the ability to see contrast, and the speed of processing what is seen.

The study involved a driving simulation test taken by 67 people with mild to moderate Parkinson’s disease and 51 healthy people about the same age. First they drove in good conditions, with clear skies. Then they drove in a foggy, low visibility situation, leading up to an intersection where another vehicle posed a crash risk.

More people with Parkinson’s disease were unable to avoid the crash—76 percent versus 37 percent. Their reaction time was also longer—2.7 seconds compared to 2.1 seconds. For those who crashed, those with Parkinson’s were driving at an average speed of 49 mph at the time of the crash, compared to 39 mph for those who did not have Parkinson’s.

“Our results suggest that a large proportion of drivers with Parkinson’s disease may be at risk for unsafe driving in low visibility situations such as fog or twilight,” said study author Ergun Uc, MD, of the University of Iowa in Iowa City and Veterans Affairs Medical Center of Iowa City, who is a member of the American Academy of Neurology.

Those with Parkinson’s also had more instances where the car’s wheels crossed over the center line or the shoulder line than people who did not have Parkinson’s, and their performance worsened with the change from good to poor driving conditions.

Among those with Parkinson’s disease, those who performed the worst on the driving test were those who had the lowest scores on tests of visual processing speed, motion perception, sensitivity to visual contrast and speed of movement.

The study was supported by the National Institute of Neurological Disorders and Stroke and the National Institute on Aging.

The American Academy of Neurology, an association of more than 21,000 neurologists and neuroscience professionals, is dedicated to promoting the highest quality patient-centered neurologic care through education and research. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as Parkinson’s disease, ALS (Lou Gehrig’s disease), dementia, West Nile virus, and ataxia. For more information about the American Academy of Neurology, visit http://www.aan.com or http://www.thebrainmatters.org.

Rachel L. Seroka | American Academy of Neurology
Further information:
http://www.aan.com

More articles from Studies and Analyses:

nachricht Amputees can learn to control a robotic arm with their minds
28.11.2017 | University of Chicago Medical Center

nachricht The importance of biodiversity in forests could increase due to climate change
17.11.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

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

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

Im Focus: Successful Mechanical Testing of Nanowires

With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong

Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...

Im Focus: Virtual Reality for Bacteria

An interdisciplinary group of researchers interfaced individual bacteria with a computer to build a hybrid bio-digital circuit - Study published in Nature Communications

Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Multi-year submarine-canyon study challenges textbook theories about turbidity currents

12.12.2017 | Earth Sciences

Electromagnetic water cloak eliminates drag and wake

12.12.2017 | Power and Electrical Engineering

Liver Cancer: Lipid Synthesis Promotes Tumor Formation

12.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>