Method for estimating device fit using physiological data

A fit and positioning optimization system for a biosignal monitoring device, the biosignal monitoring device being configured to monitor physiological signals of a user, the biosignal monitoring device having a number of bio sensors configured to sense physiological activity of the user, the optimization system comprising:

• a fit event detector comprising
• a number of sensory event actuators configured to deliver sensory stimuli to the user to stimulate the physiological signals of the user;
• and
• a controller comprising a signal analysis unit and configured to be in electrical communication with the number of bio sensors and the fit event detector;
• wherein the number of sensory event actuators are configured to transmit information about a timing of delivered sensory stimuli to the signal analysis unit;
• wherein the signal analysis unit is configured to determine a trigger time of at least one physiological signal produced in the user in response to the sensory stimuli;
• wherein the controller is configured to use the fit event detector to define a user response in response to the sensory stimuli based on physiological activity signals sensed by the number of bio sensors,
• wherein the signal analysis unit is configured to store physiological response reference data and to determine if the user response is within a predefined normative range based on the reference data,
• wherein the controller is configured to form a recommendation, based on whether the user response is within the normative range, indicating whether adjustments to the fit or positioning of the biosignal monitoring device are required in order to optimize monitoring of the physiological signals, and
• wherein the controller is configured to alert the user of the recommendation through a user interface.