Mechanism of temporal interference stimulation on brain networks and its long-term clinical efficacy in Parkinson's disease

Parkinson's disease (PD) is a neurodegenerative disorder characterized by motor dysfunction. While deep brain stimulation (DBS) is effective, its invasive nature limits its application in early-stage patients. Temporal interference stimulation (TIS) is a novel non-invasive technique that can target deep brain structures like the globus pallidus internus (GPi) by using high-frequency electric fields. This study aims to evaluate the clinical value and underlying mechanisms of TIS in PD patients. The research is divided into two phases: Phase A investigates the immediate regulatory effects of 130 Hz and 40 Hz TIS on brain networks using concurrent fMRI-TIS. Phase B is a randomized, double-blind, sham-controlled trial to assess the long-term efficacy and safety of a 2-week TIS intervention on both motor and non-motor symptoms. The results will help clarify how TIS modulates deep brain networks and its potential as a non-invasive therapy for PD.