1. An emotion recognition system for automatically assessing human emotional behavior from physical phenomena indicative of the human emotional behavior, the system comprising: one or more a sensors configured to sense, the physical phenomena; and a computer processing system configured to: receive a time series of signals from the one or more sensors; identify features, in the time series of signals that are indicative of the human emotional behavior; and output a gradient, multiple-perspective assessment of the human, emotional behavior based on the identified features that includes a gradient representation of each of multiple emotional states indicated by the human emotional behavior.