Biological Explanations Of Depression - Wender Flashcards
What does Kety suggest to be the three neurotransmitters involved in depression?
Noradrenaline, serotonin and dopamine
What does the biological explanation assume about the cause of depression?
It assumes that we may have a genetic vulnerability to depression and that various neurotransmitters may have a role to play in depression
What did Kety assume about serotonin?
That people suffering from depression would have low levels of serotonin which would prevent adequate control of the other two neurotransmitters
What was the aim of the Wender study?
To investigate the contribution of genetic and environmental factors in the cause of mood disorders
Describe the sample of Wenders study
Adoptive and biological relatives of 71 adult adoptees, with a mean age of 43.7, and 71 adult adoptees with a mean age of 44 who were psychologically normal
Outline the procedure of Wenders study
Psychiatric evaluations of the relatives were made by independent blind diagnoses from mental hospitals and other official records
How great was the increase in unipolar depression among the biological relatives of the adults?
There was an 8 fold increase
How great was the increase in suicide among the biological relatives of the adopted adults?
There was a 15 fold increase
What was concluded from Wenders study?
There is a significant genetic link between unipolar depression and suicide