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Ketamine lifts depression via a byproduct of its metabolism

From the NIH/National Institute of Mental Health media release: A chemical byproduct, or metabolite, created as the body breaks down ketamine likely holds the secret to its rapid antidepressant action, National Institutes of Health (NIH) scientists… 

Study examines addiction as a disorder of decision-making

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From the Canadian Association for Neuroscience press release via EurekAlert!: New research shows that craving drugs such as nicotine can be visualized in specific regions of the brain that are implicated in determining the value… 

Study suggests brain shape possibly related to cocaine dependence risk

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From the University of Cambridge press release via EurekAlert!: People who take cocaine over many years without becoming addicted have a brain structure which is significantly different from those individuals who developed cocaine-dependence, researchers have…