Millisecond Brain Signals Predict Response To Fast-acting Antidepressant

Images of the brain's fastest signals reveal an electromagnetic marker that predicts a patient's response to a fast-acting antidepressant. Such use of a brain scanner could someday minimize trial-and-error prescribing and speed delivery of care, say researchers. Depressed patients showed increased activity in a mood-regulating hub near the front of the brain while viewing flashing frightful faces -- the more the increase, the better their response to an experimental fast-acting medication called ketamine.

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