A system for detecting bioelectrical signals of a user comprising: a set of sensors configured to detect bioelectrical signals from the user, each sensor in the set of sensors configured to provide non-polarizable contact at the body of the user； an electronics subsystem comprising a power module configured to distribute power to the system and a signal processing module configured to receive signals from the set of sensors； a set of sensor interfaces coupling the set of sensors to the electronics subsystem and configured to facilitate noise isolation within the system； and a housing coupled to the electronics subsystem, wherein the housing facilitates coupling of the system to a head region of the user.
