Local Field Potentials

Contribution of the recording of Local Field Potential during Deep Brain Stimulation

In this study we have analyzed the relationships between magnetic resonance imaging (MRI) anatomy and local field potential (LFP) done during surgery for 10 patients with Parkinson’s disease. Percentage of power spectral density for main physiological LFP frequency range was considered for thalamus, ZI, STN and Forel (Figure). We have shown LFP allow to discriminate between structures in the subthalamic region using exploration electrode with patient at rest during electrode implantation surgery.

Fig. 1: Local field potential power spectral density analysis.