PSYC 100 Chapter Notes -Human Leukocyte Antigen, Fetus, Placenta

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chocolateweasel885

5 Jun 2012

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Concerned with the affect of evolution on behaviour: certain genes can be expressed differently depending on interactions with the environment. One gene, one disorder on genes for behaviour disorders: not very successful, major mental disorder do not involve one single gene. Genetic and environmental influences on individual members of the same species: genetic influence. Describes the amount of variance in behaviour that can be attributed to genetic differences: inheritance. A trait that is passed through genes. A trait that is not inherited will have zero heritability. Population that as higher homogenous environment will have higher heritability. Changes in evolution require changes in genetic variance. Contrasts between: identical (monozygotic, fraternal (dizygotic, genetically related individuals reared together and apart. Correlations between identical, monozygotic twins reflect heritability. Non shared environments have important effects on intelligence and personality. Behaviour has 2 interrelated types of causes: structure and chemistry of the organism.

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Professor Abel views the causes of schizophrenia as strictly biological, while Professor Worth sees the causes as completely environmental. Both are wrong. Why? A) the causes of abnormal behaviour are best described at the psychological level B) the causes of abnormal behaviour are best described in terms of psychodynamic principles C) interaction must be considered—both levels are likely involved and each influence the other D) there are no known explanations for schizophrenia. E) B & D are correct

3. Professor Abel views the causes of schizophrenia as strictly biological, while Professor Worth sees the causes as completely environmental. Both are wrong. Why? A) the causes of abnormal behaviour are best described at the psychological level B) the causes of abnormal behaviour are best described in terms of psychodynamic principles C) interaction must be considered—both levels are likely involved and each influence the other D) there are no known explanations for schizophrenia. E) B & D are correct

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43. Consider the following scenario: A group of psychologists are studying the genetic influence on intelligence. They find that identical twins (raised together) have a heritability coefficient of .88 and that fraternal twins (raised together) have a heritability coefficient of 42. Based solely on these findings, the psychologists can legitimately conclude that A) intelligence is entirely shaped by genetics B) intelligence is entirely shaped by the environment C) intelligence is impacted be genetics D) intelligence is not impacted by the environment E) intelligence is not at all impacted by genetics

PSYC 100 Chapter Notes -Human Leukocyte Antigen, Fetus, Placenta

PSYC 100 Full Course Notes

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