Effect of Transcutaneous Auricular Stimulation of the Vagus Nerve on Functional Connectivity in the Brain at Rest: fNIRS Study in Chronic Post-stroke Subjects and Healthy Subjects
The goal of this clinical trial is to study the effect of Transcutaneous Auricular Vagus Nerve Stimulation (taVNS) on resting-state brain functional connectivity. The study will assess this effect using functional Near-Infrared Spectroscopy (fNIRS) in both chronic post-stroke patients and healthy subjects. The main questions it aims to answer are: Does taVNS affect resting-state functional connectivity (measured by fNIRS) in chronic post-stroke patients? Does taVNS affect resting-state functional connectivity (measured by fNIRS) in healthy subjects? Are there differences in the effect of taVNS on functional connectivity between the post-stroke group and the healthy group? Researchers will compare the effect of active taVNS (real stimulation) to a sham stimulation (control) to evaluate its specific impact on the brain's functional networks.
• age 18 or older
• Right-handed participant;
• Hemiparesis in the chronic phase (\>6 months post-stroke)
• Participant who has agreed to sign an informed consent form;
• Participant who is affiliated with social security.
• age 18 or older
• Right-handed participant;
• Participant who has agreed to sign an informed consent form;
• Participant who is affiliated with social security.