Neuroscience

Dopamine's yin-yang personality: It's an upper and a downer

For decades, psychologists have viewed the neurotransmitter dopamine as a double-edged sword: released in the brain as a reward to train us to seek out pleasurable experiences, but also a "drug" the constant pursuit of which ...

Neuroscience

Dopamine not about pleasure (anymore)

(Medical Xpress)—To John Salamone, professor of psychology and longtime researcher of the brain chemical dopamine, scientific research can be very slow-moving.

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 ...

Medical research

Scientists report molecular structure of dopamine receptor

A team led by scientists at The Scripps Research Institute has solved the structure of one of the receptors that responds to the neurotransmitter dopamine. Although dopamine transmission is essential to normal brain functioning, ...

Medical research

Cognitive training can alter the biochemistry of the brain

(PhysOrg.com) -- Researchers at the Swedish medical university Karolinska Institutet have shown for the first time that the active training of the working memory brings about visible changes in the number of dopamine receptors ...

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