Neurofeedback Based on Near-infrared Spectroscopy as a Therapy for Food Addiction in Obese Subjects.

The sham protocol will last 15 minutes per session, and during each session, the participants will receive the same instruction but will be shown a random signal, the goal being that the control strategy that the participant tries to implement is not correlated with the visual feedback provided by the gauge.

"The neurofeedback protocol will be the same during the 8 sessions constituting the protocol and taking place over a period of 4 weeks (2 neurofeedback sessions per week, the first and the last one in an MRI context). It will last 15 minutes per session, and during each session, the patient will have to increase the brain activity of her dlPFC using a visual gauge representing the activity level of her own dlPFC. 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."