PSYC2241 Lecture Notes - Lecture 21: Social Intuitionism, Processing Fluency, Lie To Me
30 Dec 2017
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Participants judge different moral and nonmoral dilemmas while brains are scanned using fmri. Some moral dilemmas were more likely to engage impersonal, rational calculation ie. trolley dillema. Others had more personal, emotional implications ie. footbridge dilemma (participant has to push man off bridge to veer train off its course and save lives of passengers) Results were consistent with haidt"s social intuitionist model. Impersonal moral and nonmoral dilemmas activated brain regions associated with working memory, regions centrally involved in deliberative reasoning. Personal moral dilemmas activated regions of brain involved in emotional processing. Strong arguments lead to more attitude change for participants to whom the issue is personally relevant than for those to whom the issue is not relevant. The expertise of the source of the communication, in contrast, matters more for participants to whom the issue is not personally relevant suggesting that they mainly attend to peripheral aspects of the message.
