Compared MZ and DZ twins for Schizophrenia and found a concordance rate for MZ = 42% and DZ = 9%. There is a genetic component as MZ = higher than DZ, but MZ = not 100% so may be some environmental factors responsible.
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Genetics STRENGTH- Inouye (1961)
Japan, found a 74% concordance for people with progressive chronic schizophrenia and 39% where twins had mild transient schizophrenia.
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Genetics STRENGTH- Heston (1966)
Compared adopted kids who had schizo mums with kids who had normal mums. He found that 10% of the adults who had schizophrenic mums developed schizophrenia and none of the other kids- suggesting a genetic factor in schizophrenia.
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Genetics WEAKNESS of reductionism
It is too reductionist and focuses on parts rather than on the whole characteristic in question
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Genetics WEAKNESS- Tiwari et al (2010)
Mentions other factors in schizophrenia that come from the environment like infection affecting the foetus, taking cannabis and epigenetic modification
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Genetics WEAKNESS- Figee et al
Shows it is not genes as it used 13 MRI scans studies and all linked schizophrenia to the prefrontal cortex.
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Other cards in this set
Card 2
Front
Japan, found a 74% concordance for people with progressive chronic schizophrenia and 39% where twins had mild transient schizophrenia.
Back
Genetics STRENGTH- Inouye (1961)
Card 3
Front
Compared adopted kids who had schizo mums with kids who had normal mums. He found that 10% of the adults who had schizophrenic mums developed schizophrenia and none of the other kids- suggesting a genetic factor in schizophrenia.
Back
Card 4
Front
It is too reductionist and focuses on parts rather than on the whole characteristic in question
Back
Card 5
Front
Mentions other factors in schizophrenia that come from the environment like infection affecting the foetus, taking cannabis and epigenetic modification
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