Amygdala Methyl (IMAGE)
Caption
An artist's conception shows how molecules called methyl groups attach to a specific stretch of DNA, changing expression of the serotonin transporter gene in a way that ultimately shapes individual differences in the brain's reactivity to threat. The methyl groups in this diagram are overlaid on the amygdala of the brain, where threat perception occurs.
Credit
Annchen Knodt, Duke University
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License
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