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"In adolescence, the brain is very plastic so the hope is that one day we can develop interventions to prevent the development of bipolar disorder," senior study author Hilary Blumberg, a professor of psychiatry, diagnostic radiology, and of psychiatric neuroscience at the Yale Child Study Center in New Haven, Conn., said in a university news release.
Bipolar disorder typically appears in the teens and causes severe swings in mood, energy and activity levels. Problems with impulse control are common among people with bipolar disorder. People with bipolar disorder are also at high risk for substance abuse and suicide, the researchers said.
In normal development, teens tend to lose gray matter (neurons) and add white matter connections. But compared to the control group, teens with bipolar disorder lost more gray matter and had no increase in white matter connections. These differences were seen in two areas of the brain.
The findings suggest that brain circuits that regulate emotions develop differently in teens with bipolar disorder, according to the authors of the study.
The study was published recently in the journal Biological Psychiatry.
-- Robert Preidt
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