Patent ID: 8473024

Claim:
A device for detecting brain electrical activity of a subject, the device comprising: a base unit; and a headset that communicates with the base unit, the headset including: a flexible band having a first end, a second end, and a center portion; a first and a second securing device respectively adjacent to the first and second ends of the flexible band; wherein the band includes a first expansible region between the first end and the center portion, and a second expansible region between the second end and the center portion, and wherein the first and the second expansible regions are configured to adaptively stretch or contract to accommodate different forehead sizes when the first and the second securing devices are anchored to the subject's ears; flexible circuitry in the band, the flexible circuitry including at least one sensor; and a stimulus emitter coupled to the band; and further wherein the headset is configured to automatically place the at least one sensor in an accurate position on the forehead when the first and the second securing devices are anchored to the subject's ears.