fNIRS-based Neurofeedback Intervention for Cognitive Control Improvement in Emotional Overeating

"the neurofeedback protocol will last 15 minutes per session, and during each session, the volunteer will have to increase the brain activity of his/her dorsolateral prefrontal cortex using a visual gauge representing the activity level of his/her own dorsolateral prefrontal cortex. No specific instructions will be given to the volunteer so that he/she can develop his/her own internal strategy to increase this activity level."

the participants will receive the same instruction but will be shown a random signal

an examination and oral swab for oral microbiota analysis will be performed by a dentist

questionnaires for pre-intervention behavioral characterization

characterize the brain function of volunteers by resting-state fMRI

Volunteers will also be equipped with an MRI-compatible electro-gastrogram device to correlate gastric signals with brain activity during rsMRI acquisition.

an emotional Stroop task adapted to food and body image representation