DEVICE FOR ACQUIRING BRAIN ACTIVITY SIGNALS

The present invention relates to an acquisition device (10) intended to be positioned on the head of a user (12) to produce an encephalogram. The device comprises at least one acquisition electrode (32, 34, 33) configured to be positioned in contact with the head of the user (12) at the level of at least any one of the positions of the 10/20 international system, so as to acquire at least one brain activity signal representative of the brain waves of the user (12) and at least one first (36, 38, 40) and one second (36, 38, 40) means for adjusting the position of the acquisition electrode (32,34) along a first and a second plane, respectively. The first and second planes are different and chosen among the transverse (Pt) and sagittal (Ps) planes of the head of the user (12). The first (36,38, 40) and second (36, 38, 40) means for adjusting the position of the acquisition electrode (32, 34, 33) can be actuated independently of one another. The invention also relates to a method for positioning the acquisition d