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
Researchers simplify tiny structures' construction drip by drip
12.11.2018 | Princeton University, Engineering School
Mandibular movement monitoring may help improve oral sleep apnea devices
06.11.2018 | Elsevier
Max Planck researchers revel the nano-structure of molecular trains and the reason for smooth transport in cellular antennas.
Moving around, sensing the extracellular environment, and signaling to other cells are important for a cell to function properly. Responsible for those tasks...
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
19.11.2018 | Event News
09.11.2018 | Event News
06.11.2018 | Event News
20.11.2018 | Life Sciences
20.11.2018 | Life Sciences
20.11.2018 | Physics and Astronomy