What is 'information addiction' that controls people as well as alcohol and sweets?


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There should be many people who have experience that 'I didn't intend to touch my smartphone, but when I realized I was unknowingly taking out my smartphone and checking SNS'. In fact, from the experiment of scanning the brain processing the information and observing its activity, it was announced that 'the part that asks for information in the brain and the part that feels the reward are found to be common.' it was done.

Common neural code for reward and information value | PNAS
https://www.pnas.org/content/116/26/13061

How is it snacks, money, and drugs-to your brain: Researchers demonstrate common neural code for information and money; both act on the brain's dopamine-producing reward system-ScienceDaily
https://www.sciencedaily.com/releases/2019/06/190619174530.htm

The Way Our Brain Values Information Suggests It Can Be Addictive, Like Food or Drugs
https://www.sciencealert.com/information-is-just-as-addictive-as-food-or-drugs-study-shows

The research group of the University of California at Berkeley, a neurologist Ming Hsu and others, experimented to uncover the brain's role in seeking information. In the experiment, 37 subjects were asked to play the game, and the brain in play was scanned by fMRI .

The experiment used a gambling-themed game where participants could choose to buy information that would make the bet profitable before placing the bet. In other words, the subject is required to examine the value of the information and compare it with the amount obtained as a reward when winning a bet.


by Naomy Quiñones

In most cases, subjects made a rational decision to 'purchase only when the value of the information meets the price.' However, as the amount of money involved in betting increased, there was also a tendency to purchase unnecessary information.

In addition, when the subject's brain during the experiment was scanned, in the subject's brain under reviewing the information, the frontal body that controls striatal , reason, behavior control, etc. that are suggested to be involved in addiction It turned out that the inside frontal part of Maeno is active.

Furthermore, as a result of analyzing the data of scan results with a machine learning algorithm trained by the method of support vector regression , 'common signal is used for the function of the brain to control the reward and the function of the brain to evaluate the need for information. It also means that it has become clear.

Hsu says about the results of this study 'Similarly to junk food, we are able to satisfy curiosity with ever-newer information, but the brain works for fun information 'It seems to be abused by click baits etc. who are interested in flashy headlines.'

in Science, Posted by log1l_ks