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REVOLUTION: 1980 - PRESENT FROM PSYCHOLOGICAL PERSONALITY EARLY LIFE PSYCHOTHERAPY TO BIOLOGICAL DISEASE BRAIN MEDICATION
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HISTORY DOMINANT IN 19TH CENTURY - DISEASE OF BRAIN RISE AND DOMINANCE OF PSYCHODYNAMIC THEORY LITTLE KNOWLEDGE ABOUT BRAIN DISCREDITING OF GENETIC THOUGHT WITH NAZIS
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EMERGENCE OF BIOLOGY SCIENTIFIC REVOLUTION BEGAN ABOUT 1980 MORE KNOWLEDGE ABOUT BRAIN – HUMAN GENOME PROJECT NOW NEW TECHNOLOGY FOR THE STUDY OF THE BRAIN (CAT; MRI; PET)
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EMERGENCE OF BIOLOGY PSYCHOPHARMACOLOGICAL DEVELOPMENTS INSURANCE AND MANAGED CARE DRUGS CHEAPER AND MORE EFFICIENT THAN THERAPY CAN TREAT SERIOUSLY ILL
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DSM-III (1980) REJECTED DYNAMIC MODEL OF DSM-I AND DSM-II ADOPTED DIAGNOSTIC MODEL
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DIAGNOSTIC MODEL PARTICULAR DIAGNOSIS VERY IMPORTANT NOT CONTINUOUS, BUT CATEGORICAL SYMPTOMS INDICATE UNDERLYING DISEASES BUT, NO “GOLD STANDARD” OTHER THAN SYMPTOMS
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CAUSES BRAIN DISORDERS OFTEN GENETIC VULNERABILITIES EARLY CHILDHOOD ILLNESSES OR TRAUMAS CURRENT TRAUMAS CAN CHANGE BRAIN
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EVIDENCE FOR GENETIC PROBABILITY OF SCHIZOPHRENIA NO SCHIZ RELATIVES1% UNCLES/AUNTS/COUSINS2-4% ONE PARENT 6% FULL SIBLING10% DZ6-15% MZ30-40%
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BASIC PROBLEM FAMILIES TRANSMIT GENES AND BEHAVIORS, VALUES, CULTURE, ETC. HOW SEPARATE GENETIC FROM ENVIRONMENTAL INFLUENCES? TWO MAJOR WAYS
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ADOPTION STUDIES GET GENES FROM ONE SET OF PARENTS AND ENVIRONMENT FROM ANOTHER SET NATURAL CHILDREN OF M.I. PARENTS RAISED BY NON-M.I. FOSTER PARENTS COMPARE TO ADOPTED CONTROL GROUP
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HESTON STUDY 47 CHILDREN BORN TO SCHIZ. MOTHER IN OREGON M.H. 1915-45 AND TAKEN AWAY AT BIRTH CONTROL GROUP OF 47 CHILDREN OF NON-M.I. MOTHERS ADOPTED AT BIRTH
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HESTON (CONT.) 17% OF CHILDREN BORN OF SCHIZ. MOTHERS BECAME SCHIZ. 0% OF CONTROL GROUP OTHER STUDIES OF SCHIZOPHRENIA ALSO SUPPORT GENETIC INFLUENCE (ALTHOUGH NOT AS STRONGLY)
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OTHER ILLNESSES DEPRESSION AND ALCOHOLISM RATES IN ADOPTEES SOMETIMES RESEMBLE FOSTER PARENTS MORE THAN NATURAL PARENTS INDICATES ENVIRONMENTAL AS WELL AS GENETIC INFLUENCES
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COMPARE MZ - DZ TWINS MONOZYGOTIC TWINS (MZ) - SHARE 100% GENES DYZYGOTIC TWINS (DZ) - SHARE 50% GENES RAISED IN SAME FAMILY, ETC. CONTROL ENVIRONMENT, VARY GENES
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DIFFERENCES IN SCHIZ. SIBLINGS10% DZ6-15% MZ30-40% OTHER DISORDERS LESS DIFFERENCE BUT ALWAYS MORE MZ THAN DZ
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LIMITS OF TWIN STUDIES MZ CONCORDANCE FAR FROM 100% ARE TWINS REPRESENTATIVE? EXTENT GREATER CONCORDANCE FOR MZ IS SOCIAL NOT GENETIC PHYSICAL SIMILARITY, MORE INTERACTION, SAME FRIENDS CAN’T LOCATE PARTICULAR GENES
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