Musician’s dystonia occurs in musicians who have practiced particular complicated movements for years. The muscle spasms are usually painless and generally occur only when playing the instrument.
For the study, researchers applied low-amplitude vibration to the hand muscles in 24 people: six who had musician’s dystonia, six professional musicians with no dystonia, six healthy non-musicians, and six people with writer’s cramp, which is another type of dystonia that occurs in people while they write.
Using transcranial magnetic stimulation, the researchers evaluated the reaction in the sensorimotor area of the brain back to the muscle during vibration of a single hand muscle. In healthy people, the vibration of a muscle increases the amount of brain messages back to the muscle and at the same time reduces the amount of messages to muscles that did not receive vibration. In people with musician’s dystonia, vibration in any one hand muscle increases the amount of messages to all hand muscles. In writer’s cramp, vibration to one muscle has no effect on any muscle.
Now, in an intervention that lasts only 15 minutes, muscle vibration was applied to a thumb muscle, and the participant’s attention was either directed on that muscle itself or away from it. The reaction of the brain’s sensorimotor areas to the muscles was then tested again using transcranial magnetic stimulation.
“Our hope is that stimulation can retrain how the brain responds,” said study author Karin Rosenkranz, MD, with UCL Institute of Neurology in London, United Kingdom.
The study found that the vibration intervention in which subjects had to attend to their thumb muscle tended to restore a more normal pattern in the sensorimotor area of the brain in people with musician’s dystonia. This effect was less pronounced in the people with writer’s cramp.
“More research is needed to see if prolonged use of stimulation can improve hand motor function,” Rosenkranz said. “These results also suggest that the underlying mechanism of the disorder may be different in musician’s dystonia and writer’s cramp.”
The American Academy of Neurology, an association of more than 20,000 neurologists and neuroscience professionals, is dedicated to improving patient 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 epilepsy, dystonia, migraine, Huntington’s disease, and dementia. For more information about the American Academy of Neurology, visit www.aan.com.
Angela Babb | American Academy of Neurology
NTU scientists build new ultrasound device using 3-D printing technology
07.12.2016 | Nanyang Technological University
How to turn white fat brown
07.12.2016 | University of Pennsylvania School of Medicine
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
07.12.2016 | Health and Medicine
07.12.2016 | Life Sciences
07.12.2016 | Health and Medicine