dopamine and yours

In this view, dopamine does not signify how pleasant an experience will be but how much value it has to the organism at that particular moment. Schultz notes that dopamine neurons do not distinguish among different types of reward. “They're only interested in the value,” he says. “They don't care whether it's food reward or liquid reward or money. ... See more

They labeled the drive that dopamine seemed to induce as “wanting” and called the joy of being satiated, which did not seem to be connected with dopamine, “liking.”

Just like after a successful social interaction, dopamine is released after receiving positive feedback in social networks. Put briefly, these social media platforms leverage the same neural circuitry “used by slot machines and cocaine to keep us using their products,” states Harvard Medical School research technician Trevor Haynes in his piece “Do... See more

The more we activate that intense pleasure response on social media, Lembke says, the more we crave it. The repetitive action becomes less exciting and we end up needing more to give us the same pleasure we experienced with a lesser amount before. Harris likened social media to a slot machine — we don’t know if we’re going to have positive interact... See more

Our dopamine economy, or what historian David Courtwright has called “limbic capitalism,” is driving this change, aided by transformational technology that has increased not just access but also drug numbers, variety, and potency.

Schultz suggests dopamine serves as a common currency system for desire.

Nora Volkow, director of the National Institute on Drug Abuse and a longtime researcher of this neurotransmitter, would like to set the record straight: “Dopamine is not the pleasure molecule in the simple, direct way it is typically portrayed in the media,” she says. “Its function is much more nuanced.”

In a series of experiments begun in the 1980s, Schultz and his colleagues showed that when monkeys first get something pleasant—in this case, fruit juice—their dopamine neurons fire most intensely when they drink the liquid. But once they learn that a cue like a light or a sound predicts the delivery of delicious stuff, the neurons fire when the cu... See more