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Psychology Lecture 31.docx

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Western University
Psychology 1000

Psychology Lecture 31 , pages 439-450 Theories of Emotion, Brain Structures, Lateralization  Antagonistic nature of sympathetic nervous system and parasympathetic nervous system o Rebound effect o The SNS and PSNS affect body, whereas RAS affects cortex  Reticular Activating System o Activates the cortex  Emotion and Arousal o Highly aroused subjects show little expressiveness o Facial feedback hypothesis  Your face expresses your emotion o Process of Common Sense Theory  Emotion provoking event  Perception of danger o Perception of emotion (fear)  Bodily arousal o James Lange Theory  Emotion provoking event  Perception of danger o Bodily arousal  Then perception of fear o Laird (1974)  Subjects asked to tense and relax muscles  Smile or frown  Self reported happiness in smile group higher  Self reported anger higher in frown group  Stimuli seen as funnier for smile group o Strack et al. (1988)  Holding pencil in teeth or lips  One makes you happier o Ekman, Levenson and Friesen  Explicit instructions following Ekman’s coding system  Measure ANS activity  Heart rate  High rate o Skin temp  High  Anger  Low  Fear, sadness  Low rate o Happy, disgust, surprise o Inject Botox, fMRI scans before and after displaying anger o Don’t know if facial movement is necessary to show emotion o Lower activity level in amygdala and brainstem after botox, freezing of face  Cognitive Affective Theories o Lazarus’s theory  Emotion provoking events  Ap
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