Schematic representation of the experimental protocol for the first four nights.

<p>Fam, familiarization night, exclusively before the first session; Ref, Reference night; Exp, Experimental night, during which one of the three movies was presented to the participant; Rec, Recovery night. In green, time to install or remove electrodes; in orange, emotional induction (I); in yellow, evaluation (E) of emotional state with PANAS; in blue, sleep period.