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An obscure bit of brain tissue appears critical to both out-of-body experiences and our sense of being anchored to a physical self.
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Researchers were able to mimic the mind-altering effects of the drug ketamine by inducing a particular rhythm in one area of the brain.
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Scientists are learning how the party drug ketamine relieves depression so quickly — and why its effects fade over time.
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When abiding fear takes over some kids' lives, they respond with anger and aggression that's not premeditated. One psychiatrist says he's finding profound relief for a particular subgroup of these children in experimental research with the anesthesia drug ketamine.