Kirsten Müller-Vahl, from Hanover Medical School, led a team of researchers who used normal MRI scanning and the new MTI technique to investigate the brains of 19 Tourette's patients and 20 controls.
They identified alterations in the frontal lobe of the Tourette's group that they suggest may be responsible for the pathology of the syndrome. Müller-Vahl said, "Our in vivo findings, using two sensitive and unbiased techniques, support the hypothesis that alterations in frontostriatal circuitries underlie Tourette's pathology".
The MTI technique used by the researchers has never before been applied to the study of Tourette's. It is a refinement of the nuclear magnetic resonance technique and allows for the detection of changes invisible to conventional MRI scanners. Tissue alterations in comparison to controls were detected in brain areas involved in the selection, programming, initiation, and control of movement. The authors conclude, "We suggest that Tourette's is primarily caused by a dysfunction in prefrontal cortex areas rather than the basal ganglia, as has been previously thought".
Tourette's syndrome is estimated to affect between 1-10 children per 1000 and, although the severity of a person's tics tends to decline with age, as many as 1% of the adult population may have some form of tic disorder. Symptoms include various facial, phonic and other motor tics - the well-known propensity for 'un-voluntary' swearing is in fact relatively uncommon, only affecting about 10% of Tourette's patients.
Graeme Baldwin | EurekAlert!
Virtual Reality in Medicine: New Opportunities for Diagnostics and Surgical Planning
07.12.2016 | Universität Basel
3-D printed kidney phantoms aid nuclear medicine dosing calibration
06.12.2016 | Society of Nuclear Medicine
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
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...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
09.12.2016 | Life Sciences
09.12.2016 | Ecology, The Environment and Conservation
09.12.2016 | Health and Medicine