New research in Nature just changed how I think about Parkinson’s disease.
For years, we treated it as a problem in isolated motor areas that control the hand or foot. But brain imaging across 863 participants suggests something bigger.
Parkinson’s may involve a whole body control system in the brain called the Somato-Cognitive Action Network (SCAN).
Researchers found that deep brain regions like the substantia nigra become overconnected to this network. Treatments that work, like levodopa and deep-brain stimulation, seem to improve symptoms by normalizing this hyperconnectivity.
In a small clinical trial, patients who received magnetic stimulation targeting the SCAN improved twice as much as those treated at traditional limb motor areas.
This suggests Parkinson’s might not just be a movement disorder of isolated regions. It may be a network disorder of whole body control.
Early results, but a fascinating shift in how we may treat the disease.