Brain study sheds light on Parkinson's and tics

This completed study from the National Institute of Neurological Disorders and Stroke aimed to better understand how the brain controls movement and what goes wrong in movement disorders like Parkinson's disease, Tourette's syndrome, and dystonia. Over 1,200 adults—both patients and healthy volunteers—took part in various non-treatment procedures such as MRI scans, EEG, and eye-tracking tests. The study did not offer any treatment, but its findings may help future research into causes and potential therapies.