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UMass Amherst PSYCH 100 - More disorders and explanations

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PSYCHOTIC DISORDERSCauses of SchizophreniaShattering of personal identity into 2 or more separate but co-existing personalitiesEATING DISORDERS – Only disorder that can kill youFactsCauses?Psyc 100 1st Edition Lecture 27Outline of Last LectureI. Anxiety DisordersII. Psychotic Disorders Outline of Current Lecture I. Psychotic DisordersII. Dissociative DisordersIII. Eating DisordersIV. Personality DisordersCurrent LecturePSYCHOTIC DISORDERSCauses of SchizophreniaPoint: No one really knows what the cause is…Some guesses:1. Genetics No family history: 1 in 100 Parent/sibling: 1 in 10 Identical twin: 1 in 22. Dopamine Super high levels of dopamine Lots of attempt to treat this component but…o Reducing dopamine → Parkinson’s disease3. Brain abnormalities Abnormal brain activity: Low frontal activity High thalamus activity Enlarged fluid filled areas in the brain4. Viral infection in prenatal developmentThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. Mom gets severe flu when pregnant Increased during flu epidemic 5. Environmental factors Low income Family environment – Cold unloving mother lead to schizophrenia DISSOCIATIVE DISORDERSDef: disorders involving disruptions in a person’s memory, consciousness, or identity Very rare Very controversial1. Dissociative FUGUE: Person leaves home and moves to new location No memory of past lifeo Wake up in a field – no memory2. Dissociative Identity Disorder AKA: Multiple Personality Disorder Shattering of personal identity into 2 or more separate but co-existing personalities Each personality has different traits, behaviors, memorieso Host personalityo Alterso SwitchingEATING DISORDERS – Only disorder that can kill you1. Anorexia NervosaSymptoms: Body weight → 85% of expected weight Refusal to eat, gain, or maintain weight Body distortion Amenorrhea – stop menstruation Facts Affects females most (95%) 10% mortality rate Onset in early teens Common among the upper SES groups (socioeconomic status)Causes? Societal pressure to be thin Biology Vulnerability – low self-esteem, perfection, control2. Bulimia NervosaSymptoms: Pattern: Binge → Purge Eat large amount of food in short time → Compensatory behavior → Vomiting, laxatives, fasting, exercise Distorted body image Normal to slightly overweight Facts: Affects females most often Male HS wrestlers, jockeys Onset: late teens to early thirties3. Binge Eating Disorder Bulimia without the compensatory behavior Accounts for 20% obesity rateEATING DISORDERSMedical complications of eating disorders:Anorexia Nervosa: Osteoporosis  Kidney Failure Lanugo – Peach fuzz like hair that covers your body when you cannot maintain your body temperature Hair loss from head Heart attack DeathBulimia Nervosa: Tooth decay Bowel problems Vomiting blood Organ failure Heart attacks Esophageal tears Fertility issuesAXIS II – PERSONALITY DISORDERSGeneral points: Extreme, inflexible personality trait Distressing either to person or to others Causes problems at work/schoolNotes: Pervasive – have it whole life Can’t cure – you are who you are Abnormal – socially unacceptable Organization: Cluster A: Odd and eccentric behaviorsCluster B: Cluster C:PERSONALITY DISORDERSCLUSTER A: Odd and eccentric behaviorsParanoid:o Unwarranted suspiciousnesso Finds hidden meaning in thingso Unforgiving of insults, hold grudgesEx: Saddam Hussein (thought to be)Schizoid:o Detached social relationshipso Solitary, few friends, doesn’t careo Little emotionEx: People who work in isolated jobs – Alaska forestSchizotypal:o Similar to schizophreniao Delusional, perceptual, distortions,


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