“Deep brain stimulation can be life-changing, but it doesn’t work equally well for everyone, and researchers say they’re getting closer to understanding why.

In a recent study published in the journal Nature Neuroscience, Horn and an international team of researchers took data from more than 530 electrodes implanted in the brains of more than 200 people living with four conditions: Parkinson’s disease, dystonia, Tourette’s syndrome and OCD.

They looked at where the devices were stimulating each person’s brain and how much improvement each had. Then, they used these records to map the nerve networks that seem to become dysfunctional in each of the four disorders…

 The team used their maps to adjust deep brain stimulators for three patients… All of them saw substantial improvement in their symptoms.”

From CNN.