Addiction is a plague affecting countless people. Recent studies suggest a new therapy to fight it: Deep Brain Stimulation (DBS) of the Subthalamic Nucleus (STN). The activity of this structure is associated with improved inhibitory control, which makes it a promising target for DBS. The goals of this study are, on the one hand, to provide a better understanding of the STN and how it works within the basal ganglia; i.e. group of nuclei that play a role in both the execution and inhibition of a given behaviour. On the other hand, to investigate socio-emotional factors that improve inhibition in a population with a casual-drinking behaviour. The study aims to establish, using fMRI, how these factors modulate the structures and networks underlying inhibition, and whether the STN is involved in this process...