Persuasive Communication - How Audiences Decide. 2nd Edition

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Emotions in Audience Decision Making 315

The Negative Impact of Emotions


Emotions are well known for their negative effects on audience decision making. Emotions can


cause audience members to reverse a prior rational decision, such as a decision to diet, to stop


drinking, or to hold a stock that is dropping in value.^49 Emotions can cause the audience to scru-


tinize information either too much or too little.^50 Emotions can cut short rational processing and


cause audiences to jump to unwarranted conclusions.^51


Thus, emotions can potentially override rational deliberations and can even cause audience

members to behave self-destructively.^52 Intense emotions create a sense of urgency that can lead


audience members to respond only to emotion-related cues and unconscious processes^53 and to


engage in automatic and dangerous behaviors.^54 Sometimes intense emotions also lead audience


members to be unreasonably harsh with others. In the courtroom, emotionally arousing testimony


and/or evidence can inhibit rational decision making and lead jurors to render excessively severe


sentencing judgments.^55


Emotions can distort the audience’s judgment about the consequences of their decisions.^56 For

example, negative emotions can cause investors to be excessively risk-averse and to choose safer


investments such as bonds over higher-performing stocks.^57 Conversely, positive emotions can make


audiences less sensitive to possible risks. For example, cigarette advertising designed to increase


the positive emotions associated with smoking can suppress the audience’s perception of the risks


involved with smoking.^58 Positive emotions have even been shown to lead foreign exchange traders


to take unwarranted risks and to lose money unnecessarily.^59 Positive emotions can lead consumers


to pay twice as much to insure a beloved antique clock as to insure a similar clock of equal value


but to which they have no emotional attachment, all despite the fact that the insurance pays $100 in


both cases.^60 Positive emotions can also make consumers more likely to buy a warranty on a newly


purchased used car when the car is a beautiful convertible than when it is an ordinary-looking sta-


tion wagon even though the expected repair expenses and the cost of the warranty are the same.^61


Emotions can even hamper the audience’s ability to reason logically about logic problems. In a

classic study of emotion versus reason, participants read 20 syllogisms that dealt with emotionally


charged topics and 20 that dealt with emotionally neutral topics. Participants were then asked to


determine if the syllogisms were valid and to state whether they agreed with their conclusions.


Interestingly, the participants were much more accurate judging the validity of the syllogisms deal-


ing with emotionally neutral topics than judging the emotionally charged ones.^62


The Impact of Emotional Defi cits


Ironically, the ability to experience emotions is essential to rational decision making. In spite of


otherwise normal intellectual abilities, patients with damage to the ventromedial prefrontal cor-


tex (vmPFC) are unable to experience emotions and, consequently, have great diffi culty making


rational decisions (see Figure 3.5 , p. 108).^63 These patients often make decisions against their best


interests and repeat prior decisions that led to negative consequences.^64 The decisions they make


often result in fi nancial losses, losses in social standing, and losses of family and friends.


Other symptoms of the emotional defi cits caused by damage to the vmPFC include indecisive-

ness, inability to prioritize, inability to plan future activity, inappropriate social manners, disregard


of risks, and lack of concern for others.^65 Yet vmPFC patients possess all of their other faculties,


including normal intelligence, comprehension, memory, and attention.^66


In his book Descartes’ Error , neuroscientist Antonio Damasio described one of his patients with

vmPFC damage who, when asked to decide which of two days he would prefer to come for his

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