Deep brain stimulation has reduced tremor and rigidity in people with Parkinson's disease for more than two decades, and nobody has been able to say precisely why it works. An analysis in the journal Brain points to a specific electrical rhythm carried between the stimulation site and the cerebral cortex, in a frequency band that researchers had largely overlooked.
The study, titled "The Deep Brain Stimulation Response Network in Parkinson's Disease Operates in the High Beta Band," was produced by an interdisciplinary team spanning the University Hospitals of Cologne and Düsseldorf, Harvard Medical School, and Charité Berlin. It appears in the July 2026 issue after being published online in February.
