The following table gives data, in kJ, for a system undergoing a power cycle consisting of four processes in series. Determine, the (a) missing table entries, each in kJ, and (b) the thermal efficiency
Psychology & Culture Week 9 Notes Class #22 Emotion Theoretical perspectives o James-Lange theory of emotions Emotions are physiologically/bodily responses Ex: you see a bear, how do you react Anger situation distinct physiological state anger Bodily response causes emotion Evidence The facial feedback hypothesis: we experience emotions as a result of the positions of our facial muscles Ex: pen exercise holding a pen w/mouth o Holding between your teeth= evokes happy emotions because it engages same muscles when we smile o Holding w/nose & upper lip= evokes sad emotions because it engages same muscles when we frown Facial Expressions o 6 basic emotions/facial expressions: happiness, sadness, fear, anger, surprise, disgust o Ekman & the universality perspective If expressions are universal, then participants from different cultures will agree on the emotion being expressed o Identifying emotions in photograph Study 1 (Ekman & Friesen, 1971) Participants from U.S., Argentina, Brazil, Chile, Japan (WEIRD cultures) Accuracy ranged from 63% (anger) to 97% (happy) Study 2 (Ekman et al., 1969) Papa New Guinea Fore (from Papa New Guinea) told a story, identify corresponding facial expression (from photos) o Fore= “pre-literate” culture/society of Papa New Guinea Accuracy (%): o Happiness- 92% o Sadness- 82% o Anger- 90% o Disgust- 85% o Fear- 93% o Surprise- 98% Study 3 (Ekman et al., 1969) Fore’s facial expressions of emotions are photographed, U.S. participants identify emotions in photos Theoretical Perspectives o Two-Factor Theory of emotions Emotions are interpretations of bodily responses The importance of the source of bodily responses Source unknown (or ambiguous) Interpret by looking to the situation Appraisal: evaluation of what the situation/event means *study by Schacter & Singer (1962)* Appraisals- do they vary o No, in the sense that some situations means the same to everyone Think: basic needs o Yes, in the sense that culture shapes our interpretations & resulting emotions Ex: a shoe is thrown at you (video of President Bush) Middle east= sign of disrespect U.S.= amusement Ex: writing in red ink Korea= writing someone’s name in red ink AFTER they die it’s a sign of respect; writing someone’s name in red ink BEFORE they die is a sign of disrespect or is viewed as very negative U.S.= associated with bad/negative feedback Class #23 Facial expressions- do they vary o Recap: Cultural similarities (& some differences) in how we… Recognize & produce facial expression Appraise the situations that elicit emotions o What about… How we display our emotions Variations across cultures How much do we regulate them Does what we express via facial expressions accurately convey what we feel inside o Ekman and the universality perspective If expressions are universal, then participants from different cultures will display the same expressions under the same situations Study 4 (Ekman, 1972) Two groups of U.S. & Japanese participants First group viewed natural or stress-inducing film in room alone* Facial expressions videotaped & judged by second group o What film is this participant watching *measured accuracy of answer from second group When viewing U.S. expressions: r= .77 When viewing Japanese expressions: r=.79 Then viewed stressful film in room with the experimenter o Experimenter= older male professor wearing a suit & lab coat o Predictions: U.S. show more disgust than Japanese o Facial expressions videotaped & compared o Why might people smile in this situation Nervous reaction, reassure experimenter that they’re not disgusted at them because of video o Cultural display rules Amplification (express more) Deamplification (express less) Neutralization (show nothing) Masking (show something else) Simulation (show even if not feeling) *study 4 shows some deamplification/masking in Japanese participants o What cultural factors encourage the use of display rules What about immediate social factors Job masking Kid on Christmas simulation Class #24 Emotional experiences- do they vary o Similarity in physiological responses o The Minangkabau study (Levenson et al., 1992) Participants were Minangkabau men and U.S. men & women Given instructions re: expressions held for 10 minutes “Wrinkle your nose & let your mouth open, pull your lower lip down…” Measured heart rate, skin conductance and respiration U.S. participants showed increased heart rate for each emotion as compared to the Minangkabau o Differences in physiological responses o How rude! (Anderson & Linden, 2008) Chinese- & European-Canadians Rude experimenter Measured blood pressure & heart rate Chinese-Canadians show faster decline in heart rate after dealing with the experimenter than the European-Canadians Typical responses to an annoying situation: Express, suppress, distract, & reappraisal Why the differences European-Canadians usually express emotions more Chinese-Canadians engage in reappraisal