20 EMOTION AND THE SOCIAL BRAIN .pdf - 20 EMOTION AND THE SOCIAL BRAIN Portrait Agenesis of the Frontal Lobe \u2013 Case Study JP Male born in 1912

20 EMOTION AND THE SOCIAL BRAIN .pdf - 20 EMOTION AND THE...

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20 EMOTION AND THE SOCIAL BRAIN Portrait: Agenesis of the Frontal Lobe – Case Study JP - Male born in 1912, difficult labor, 11.5 lbs, dropped to 5 lbs after postpartum complications - Development seemed to progress normally o Normal intelligence o Walking and talking by age 1 - Childhood – problems emerge o Difficult, hyperactivity o No emotions beyond expressed (many tantrums) - School age o Wandered w no fear being lost o In appropriate social behavior o Developed no close friends and generally disliked - Youth – 19 o Stole – criminal record, led to psychiatric evaluation of behavioral problems o Eventual finding: § Right frontal lobe was missing and only 50% of left frontal lobe was present § Cannot outgrow this - Adult o Erratic behavior, inability to maintain a job o 50 – behavior was the same: Hyperactive, alone, detached– no social connection - W little to no frontal lobe tissue o Almost had no social feelings o No ability to understand such feelings in others o No ability to appropriately react to emotions in others (temper tantrums) Case Study: Elliot - Much like Phineas Gage - Large tumor in the meninges covering his frontal lobes – tumor successfully removed but dramatic shift in personality - Medial and orbital frontal lobe damage, more damage on the right side than the left - Before surgery o Good husband, father, successful business man - After surgery o Had to be prompted to go to work – once there could not be task switch – perseveration o Unable to follow schedule or meet deadlines o Made bad decisions that lead to bankruptcy and divorce - Seemed to have good language skills and good cognitive skills - No longer able to make decisions, change activities once started or plan for the future - Hanna Demasio – neuropsychological test battery o Tested well on awareness of consequences, social problem solving and moral reasoning ability o BUT- when presented w emotional scenes – injured people, natural disasters, he reported what he should feel but noted the absence of the feeling itself o Ppl thought this was an example of malingering o No automatic arousal response to the pictures- he could no longer rely on feelings to guide himself o Disaffection – losing all internal feelings/ psychophysiological response w emotion 20.1 The Nature of Emotion - Unconscious inference – processes outside of awareness and learned by experience whereby observers use knowledge to perceive and make decisions What are Emotions?
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