theme is more congruent with a recipient's state of mind when he or she cannot easily imagine the symptoms whereas a message with an aversive theme is more congruent with a recipient's state of mind when he or she can easily imagine having the symptoms . See also Algorithm Behavioral economics – an economic subfield which looks at heuristics in decision making List of biases in judgment and decision making Problem solving Representativeness heuristic Footnotes References Further reading Heuristics