A neurofeedback headgear is provided. The neurofeedback headgear comprises a head receiving portion, a brim portion, an EEG sensor assembly and an emitter. The EEG sensor assembly includes one or more sensing electrodes located on the inner side of the head receiving portion, for contacting the forehead of the user and sensing brain activity when the headgear is worn. The EEG sensor assembly also includes a microcontroller in communication with the sensing electrodes, the microcontroller being mounted to the inner side of the head receiving portion and concealed under the concealing layer. The emitter emits a visual feedback according to the state of brain activity determined by the microcontroller, the visual feedback being located within a field of vision of the user when the headgear is worn by the user.