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Home Q & A Board Science-Related Homework Help Psychology
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colleen colleen
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12 years ago
Analyze the research findings that emphasize the role of genetics and brain chemistry in the development
of depression.
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Sunshine ☀ ☼

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#1
Valued Member
12 years ago
Studies of adopted children and twins support the notion that major depression is a moderately heritable disorder.
It is unlikely that a single gene is involved.
It is likely that a genetic predisposition interacts with stressful events to create the disorder.
A gene called 5-HTT comes in two forms, a long and a short form.  The short form appears to be related to depression.
Genes may exert their effects by affecting levels of serotonin and other neurotransmitters or by affecting production of cortisol.
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