Psychology 2720A/B Lecture Notes - Lecture 4: Nonverbal Communication, Lie Detection, Display Rules

• School: Western University
• Department: Psychology
• Course: Psychology 2720A/B
• Professor: Danny L Morrison

Document Summary

Social perception: the study of how we form impressions of and make inferences. Facial expressions are the most significant channel of nonverbal communication. Theory that people experience a small number of distinct emotions. Fear, anger, sadness, joy, surprise, disgust, contempt, possibly pride. The finding that certain emotions exist across most or all cultures doesn(cid:495)t mean that cultures are identical in their emotional expressions. Cross-cultural guidelines for how and when to express emotions. There are reliable nonverbal indicators of lying voice pitch increases when lying eye blinks increase when lying posture shifts and gestures increase when lying. However, no one nonverbal behavior is associated perfectly with lying, and lies can be told successfully without these behaviors. The polygraph test: physiological responses to questions designed to expose negative) falsehoods (risk of high false-positive) Major problem: if you are originally stressed out- that will appear as a lie. Guilty knowledge test: criminals know something the innocent don(cid:495)t (cid:523)high false-