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Human beings have evolved a rich and sophisticated set of processes for engaging with the world in which cognition and affect play two different but equally crucial roles. Cognition interprets and makes sense of the world. Affect evaluates and judges, modulating the operating parameters of cognition and providing warning of possible dangers. The study of how these two systems work together provides guidance for the design of complex autonomous systems that must deal with a variety of tasks in a dynamic, often unpredictable, and sometimes hazardous environment.
Norman et al. (Wed,) studied this question.