Methods systems and devices are described for collecting physiological data using a configurable biopotential array. The array is em¬ bedded on a surface area of a handheld device (115 f) such as a cellular phone. The array (505 b)includes a number of electrode tiles. The electrodes include biosensors to collect the physiological data of a user. The electrodes are polled to detect contact with the user s skin. Electrodes in contact with the skin are electrically coupled to form an active electrode area (805 a l 805 a 2). The coupled electrodes collect the physiological data relating to the user via the biosensors. The electrodes are decoupled after contact with the user s skin is terminated. The physiological data is analyzed and an emotional state or health state of the user is determined from the analyzed data.
