Biological Approach to Psychopathology

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The physcial approach = somatic root

1) GENES (certain genes can  inherit illness e.g. schizophrenia and depression) Evidence can be supported by:

Gottesman 1991 presented a concordance rate between 

MZ twins: 48% (identical - one egg fertilised)

DZ twins: 17% (fraternal - two different cells)

NORMAL: 1% (chance of developing SZ if parents don't have it)

are more likely to


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