Immunology

Tickling the brain can boost immunity: study

Artificially stimulating the brain's feel-good centre boosts immunity in mice in a way that could help explain the power of placebos, a study reported Monday.

Neuroscience

Drug could stop marijuana cravings

(Medical Xpress)—In the US, more people seek treatment for marijuana abuse than for abuse of cocaine or heroin. However, there are no approved treatments for marijuana addiction. Robert Schwarcz of the University of Maryland ...

Medical research

Morphine and cocaine affect reward sensation differently

(Medical Xpress)—A new study by scientists in the US has found that the opiate morphine and the stimulant cocaine act on the reward centers in the brain in different ways, contradicting previous theories that these types ...

Neuroscience

Alcoholism may be caused by dynamical dopamine imbalance

An international research collaborative has identified potential alcoholism mechanisms associated with altered dopaminergic neuron response to complex dynamics of prefrontal cortex neurones affecting dopamine release.

Neuroscience

Researchers uncover new target of alcohol in the brain

When alcohol enters the brain, it causes neurons in a specialized region called the ventral tegmental area, or VTA—also known as the "pleasure center"—to release dopamine, a neurotransmitter that produces those feel-good ...

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