Neurobiology of Bipolar Disorder: Genetic & Brain Imaging Links

Bipolar disorder, formerly known as manic depression, is a chronic mental illness characterized by dramatic shifts in mood and energy levels. It affects about 2-4% of the population worldwide. While we still don’t fully understand what causes bipolar disorder, research over the past couple decades has uncovered important clues into the biological mechanisms behind this …

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Bipolar Mania & Brain Activation: Right Ventral PFC & Limbic Dysfunction

Mania is characterized by emotional dysregulation, sleep disturbances, and impaired judgment. Understanding its underlying brain circuitry could lead to improved diagnosis and treatment. Key Facts: Mania involves decreased activity in the right ventral prefrontal cortex (PFC) and increased activity in the left amygdala, left anterior cingulate cortex (ACC), and left basal ganglia. This lateralized limbic …

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Antidepressants & Mania in Bipolar Disorder: 5-HTTPLR Gene Impacts Risk

Bipolar disorder is a mental illness characterized by extreme mood swings between depression and mania. While antidepressants are commonly prescribed to treat the depressive symptoms, they can also trigger manic episodes in some patients. New research suggests having a certain gene may increase this risk. Key Facts: Antidepressants can cause manic episodes, called treatment emergent …

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