Psychology & Psychiatry

Animal study: long-term ritalin doesn't impact growth

(HealthDay) -- Chronic use of methylphenidate (Ritalin) in young monkeys has no significant effect on growth or the dopamine system, or the likelihood of becoming addicted to cocaine, according to a study published online ...

Psychology & Psychiatry

Low dopamine levels during withdrawal promote relapse to smoking

Mark Twain said, "Giving up smoking is the easiest thing in the world. I know because I've done it thousands of times." Many smokers would agree that it's difficult to stay away from cigarettes. A new study in Biological ...

Neuroscience

The Zuelch Prize 2013—reward for brain researchers

Maximum reward, minimum punishment: these are the maxims humans and animals often apply when making decisions. A network of nerve cells in the brain conveys gratification. This reward system uses the messenger substance dopamine ...

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