Using Genetics To Improve Traditional Psychiatric Diagnoses

Psychiatry has begun the laborious effort of preparing the DSM-V, the new iteration of its diagnostic manual. In so doing, it once again wrestles with the task set by Carl Linnaeus, to "cleave nature at its joints." However, these "joints," the boundaries between psychiatric disorders, such as that between bipolar disorder and schizophrenia, are far from clear. We now know that symptoms of bipolar disorder may be seen in patients with schizophrenia and the reverse is true, as well.

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