This invention is a wearable device for the ear comprising: an ear attachment with a forehead-projecting portion, an electromagnetic energy sensor which is configured to collect data concerning electromagnetic energy which is transmitted through and/or emitted by the persons body, a microphone, a spectroscopic sensor which is configured to collect data concerning light energy which is transmitted through and/or reflected from the persons body, a sound-emitting unit, a power source, and a data processor. This device configuration is advantageous for mobile electroencephalographic monitoring and spectroscopic analysis of body tissue.
