Systems and methods for inducing a change in a human physiological characteristic. The physiological characteristic may correspond to an emotional state of a dialogue participant. The dialogue participant may be an individual participating in a conversation. The outcome of the conversation may be related to a business objective, such as providing high quality call center services. A sensor may monitor the physiologic characteristic. A processor may relate the physiologic characteristic to an emotional state. The processor may provide feedback to the individual based on the emotional state. The feedback may be formulated to change the individual's emotional state.