Adolescents in the first episode of depression, prior to exposure to medication, have decreased functional connectivity between brain regions involved in emotion processing, but increased connectivity between brain regions known to be involved in rumination, according to a new brain scan study.

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Adolescents in the first episode of depression, prior to exposure to medication, have decreased functional connectivity between brain regions involved in emotion processing, but increased connectivity between brain regions known to be involved in rumination, according to a new brain scan study.