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  2. Non-invasive vagus nerve stimulation modulates subthalamic beta activity in Parkinson's disease.

Non-invasive vagus nerve stimulation modulates subthalamic beta activity in Parkinson's disease.

Torrecillos F
Tan H
Brown P
Capone F
Ricciuti R
Di Lazzaro V
Marano M

Non-invasive vagus nerve stimulation (VNS) may improve the movement problems experienced by people with Parkinson's. Here we recorded the brain activity of patients during VNS and found that the stimulation progressively reduced the abnormal activity (called beta) typically observed in the brains of people with Parkinson’s. These results show how VNS might be a non-invasive strategy to reduce parkinsonian motor symptoms.

Figure made up of two panels. On the left, a human head with an arrow at the side of their neck pointing to the vagus nerve. On the right, a plot of power as a function of frequency in three conditions (baseline, inter-stimulation and post-stimulation)
The left cervical branch of the vagus nerve was stimulated in seven patients with Parkinson’s. Simultaneous recordings of their brain activity (subthalamic nucleus, STN) revealed a progressive reduction of oscillatory power in the low beta band (blue) which reached its maximum after the 4th stimulation block (yellow).
Citation

2022. Brain Stimul, 15(6):1513-1516.

DOI
10.1016/j.brs.2022.11.006
Free Full Text at Europe PMC
PMC7613925
Full Text PDF
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