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The focus of my research is at the intersection between genetics, psychiatry, and neurology. Many neurological disorders are highly comorbid with psychiatric disorders, but the cause of this comorbidity is unknown. Possible explanations include a reaction to having a chronic stigmatizing disorder (i.e., reactive effects), a common pathophysiological pathway, treatment effects (i.e., iatrogenic), and a shared etiology. Using genetic information, the goal of my research  is to distinguish among these hypotheses and, in particular, to test the hypothesis that the comorbidity is due, in part, to a shared genetic susceptibility.