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Emotion & Agression.docx

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Florida State University
PSB 2000
Orenda Johnson

Emotion & Aggression Fear-> escape Anger-> attack Disgust-> avoid Gut feeling: snakes, spiders and shocks -Presentation too quick for identification -Follow one of those pictures w/ an electric shock -Sympathetic response is being measured -Asked if they noticed a change in heart rate, sometimes shock was forthcoming -Good at reporting HR increase, good at predicting shock Three Aspects of an emotional state -Cognition ("this is bad") -Readiness for an action ("run away!" autonomic NS) -A feeling ("I'm scared") James Lange theory Event/ Stimulus -> Physiological reaction SNS -> Feeling/ Emotion Emotion related to action Predictions of JL Theory -People with weak skeletal responses should feel less emotion -NO -People with weak or absent autonomic responses (pure autonomic failure) should feel less emotion, no sympathetic nervous system to certain stimuli -Does actually occur -Can understand the emotion but cannot feel as strongly -Enhancing someone's physiological or physical responses -Yes -Make person "smile"-> show them something potentially funny -> Think it's funny -Short of breath ->think suffocating->panic attack->panic disorder -Exceptions: smiling doesn’t cure depression More on feedback from body -Tell people how to move facial muscles-> produce an expression of an emotion-> alterations in autonomic Nervous system -Part of the emotional experience is relates to what body is doing (even muscles of facial expressions) -Imitation seems to be innate -Maybe for empathy: see an emotional expression->imitate it->feel it Facial expression of emotions -Innate, unlearned, biologically determined -People in different cultures use the same movement -Blind children versus sighted: same expressions -Way of communicating Can be modulated -Men tend to not express as much emotion -Women tend to increase amount of emotional expression Brain areas involved in emotion Cingular gyrus, under corpus collosum Limbic System thought of as emotion center Amygdala Cortex -Strong responses to all emotions -Different emotions seen all over, esp. frontal and temporal lobes and sometimes, different emotions activate same regions -Some cells respond mainly to pleasant pictures; others to unpleasant pictures; haven't seen specific calls to different types of unpleasantness -Insular cortex responds especially to negative emotions -Primary taste, lights up a lot when recognizing or experiencing disgust, also behavior -Also fear Lateralization: roles of left versus right hemisphere Personality -More activity in left frontal cortex-> happier, outgoing, fun-loving -More activity in right hemisphere-> socially withdrawn, less satisfied w/ life, prone to unpleasant emotions Right hemisphere more responsive to emotional stimuli -Activity in R amygdala in the temporal lobe, which helps identify, faces than the left -Damage to R temporal cortex difficulty identifying others' emotional states -Peop
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