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Has dopamine got us hooked on tech?

5 March 2018

From The Guardian:

In an unprecedented attack of candour, Sean Parker, the 38-year-old founding president of Facebook, recently admitted that the social network was founded not to unite us, but to distract us. “The thought process was: ‘How do we consume as much of your time and conscious attention as possible?’” he said at an event in Philadelphia in November. To achieve this goal, Facebook’s architects exploited a “vulnerability in human psychology”, explained Parker, who resigned from the company in 2005. Whenever someone likes or comments on a post or photograph, he said, “we… give you a little dopamine hit”. Facebook is an empire of empires, then, built upon a molecule.

Dopamine, discovered in 1957, is one of 20 or so major neurotransmitters, a fleet of chemicals that, like bicycle couriers weaving through traffic, carry urgent messages between neurons, nerves and other cells in the body. These neurotransmitters ensure our hearts keep beating, our lungs keep breathing and, in dopamine’s case, that we know to get a glass of water when we feel thirsty, or attempt to procreate so that our genes may survive our death.

In the 1950s, dopamine was thought to be largely associated with physical movement after a study showed that Parkinsonism (a group of neurological disorders whose symptoms include tremors, slow movement and stiffness) was caused by dopamine deficiency. In the 1980s, that assumption changed following a series of experiments on rats by Wolfram Schultz, now a professor of neuroscience at Cambridge University, which showed that, inside the midbrain, dopamine relates to the reward we receive for an action. Dopamine, it seemed, was to do with desire, ambition, addiction and sex drive.

Schultz and his fellow researchers placed pieces of apple behind a screen and immediately saw a major dopamine response when the rat bit into the food. This dopamine process, which is common in all insects and mammals, is, Schultz tells me, at the basis of learning: it anticipates a reward to an action and, if the reward is met, enables the behaviour to become a habit, or, if there’s a discrepancy, to be adapted. (That dishwasher tablet might look like a delicious sweet, but the first fizzing bite will also be the last.) Whether dopamine produces a pleasurable sensation is unclear, says Schultz. But this has not dented its reputation as the miracle bestower of happiness.

Dopamine inspires us to take actions to meet our needs and desires – anything from turning up the heating to satisfying a craving to spin a roulette wheel – by anticipating how we will feel after they’re met. Pinterest, the online scrapbook where users upload inspirational pictures, contains endless galleries of dopamine tattoos (the chemical symbol contains two outstretched arms of hydroxide, and a three-segmented tail), while Amazon’s virtual shelves sag under the weight of diet books intended to increase dopamine levels and improve mental health.

“We found a signal in the brain that explains our most profound behaviours, in which every one of us is engaged constantly,” says Shultz. “I can see why the public has become interested.”

Link to the rest at The Guardian

Books in General

5 Comments to “Has dopamine got us hooked on tech?”

  1. HAHAHAHA. Likes = Dopamine. That’s funny. Because whenever my timeline fills up with stuff other people “liked” (liked, mind you. Not “shared”.) Their little dopamine hit pisses me off.

    So with some of us, that little “feature” has backfired.

  2. Has dopamine got us hooked on tech?


  3. -grin- not hooked on Facebook, that’s for sure.

  4. I’m much more concerned that oxygen has me hooked on breathing.

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