Genetic Explanations of Unipolar Depression


Genetic Explanations of Unipolar Depression

McGuffin (1996)

Found that if one monozygotic twin became depressed, then the other had a 46% chance of developing depression. 

If one dizygotic twin developed depression, the other had a 20% chance of also developing depression. 

This suggests that depression is genetic, as monozygotic twins share more genes.

Hyde (2016)

Found 17 different gene combinations that could cause depression.

This suggests that depression could be hard to identify, as there are so many different gene variations to develop it from.

However, some people do not inherit depression. The most likely explanation of this is the diathesis stress model. This


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