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Clinical Trial Summary

Primary objective

Demonstrate functional markers derived from electrophysiological signals recorded during cognitive tests. These markers should make it possible to optimize the targeting procedures of electrode implantation sites for a better effectiveness of deep brain stimulation therapy.

Research hypotheses

The mechanisms of action of the deep brain stimulation (DBS) involve the modulation of the activity, locally and on a large scale, of functional cortical-subcortical networks showing pathological behavior beforehand. The electrophysiological measurements in response to different tasks make it possible to highlight precise dysfunctions of these neural networks, in relation with the behavioral and / or motor disorders associated with the pathologies treated by DBS.

Consequently, we hypothesize that the exploitation of electrophysiological responses during cognitive or sensorimotor tasks performed during the implantation procedure of stimulation electrodes in patients treated with DBS will allow :

- To collect fundamental data to understanding the physiological functioning of basal ganglia in humans ;

- To collect functional markers from the operating room in relation to the symptoms targeted by the DBS that will help in the choice of implantation site of the stimulation electrode ;

- Define long-term predictive markers of DBS effects by comparing electrophysiological effects measured post-operatively and clinical scores under DBS.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT03874611
Study type Interventional
Source University Hospital, Grenoble
Contact Olivier David, Dr
Phone 04 56 52 05 86
Email Olivier.David@inserm.fr
Status Recruiting
Phase N/A
Start date April 13, 2011
Completion date March 31, 2021

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