Device (1) suitable for measuring the brain activity signals of an individual, said device being intended to be placed on the head of said individual and having a structure (2) intended to carry sensors, said structure allowing the position of the sensors to be adjusted. According to the invention, said structure of the device has: a deformable central support (2), which is able to adapt to the curvature of the head and is intended to be positioned along the head, preferably on the median plane of the cranium flexible guides (3), which extend laterally with respect to said central support and are spaced apart from each other sensor supports (41,42), which are rigidly connected and fixed to said flexible guides (3), in adjustable positions along the flexible guides (3) and a system (5, 6) for tightening said flexible guides.Dispositif (1) convenant pour la mesure des signaux de lactivité cérébrale dun individu, destiné à être apposé sur la tête dudit individu comportant une structure (2) destinée au port de capteurs, ladite structure autorisant un réglage de la position des capteurs. Selon linvention, ladite structure du dispositif comportant: - un support central (2), déformable, apte à sadapter à la courbure de tête, destiné à être positionné le long de la tête, de préférence suivant le plan médian du crâne, - des guides souples (3), sétendant latéralement audit support central, espacés les uns des autres - des supports de capteur(s) (41,42), solidaires et fixés auxdits guides souples (3), de positions réglables le long des guides souples (3), - un système (5,6) de mise en tension desdits guides souples.
