PSY328H1 Chapter Notes - Chapter 3: Prefrontal Cortex, Negative Number, Real Crime
Document Summary
Machiavellian intelligence hypothesis, hold that a great leap forward in human intelligence was triggered by the need for humans to develop the essential social skills of manipulation, pretence, and deception. We can lie, mislead, misinform, trick, fake, betray, fool, cheat, etc. Can we tell when others are lying? people do better than chance in distinguishing truth from lies, but not by much, overall rate was 54% detectives were actually more wrong about finding liars than college students. But they seemed more confident about the accuracy of their judgments detectives also showed a bias toward judging false confessions as true. This training may wrongly increase confidence in lie detection skills, even though it doesn"t increase the ability to differentiate truth from deception. These behavioural cues (crossing legs, shifting and fidgeting, grooming gestures, avoiding eye contact) are flawed indicators of deception: these cues are consistent with a prevalent but mistaken liar"s stereotype training doesn"t improve the ability to detect lies.
