goolhealth 1 year ago
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Passion for risk can be reduced

According to scientists, fanatical people who are more prone to risk, such as speeding, gambling or drugs, it would be possible to "disconnect" this passion by using the brain. The researchers accurately determined the set of brain cells involved in making risky decisions.

To understand what governed the propensity for risky decisions, scientists conducted an experiment on rats. Rats were trained to choose one of the two levers, pushing on which they made a "safe" or "risky" choice. A safe option led to a small but constant portion of water with sugar. With a risky choice of rats, they always received less sweet water, sometimes they got a "prize" in the form of a large volume of sweetened drink. Thus, the rodents soon realized the difference between the levers and made their choice consciously.

Scientists noted that about two-thirds of the animals were not interested in risk, opting for a safe option. The remaining third was prone to risks. Scanning the brain of animals showed that rats with low level of activity of DR2 cells were ready to go on an adventure. However, scientists managed to find an approach to regulating passion of passion. Using pulses of light, specialists were able to stimulate DR2 cells and increase their activity, which caused the rats to choose a guaranteed but less useful option.

In studies on rats, scientists were able to use a technique called optogenetics, which uses light-sensitive proteins to alter the activity of cells-neurons, exposing them to the action of a fiber-optic laser beam.

Professor Karl Deisseroth, from Stanford University in California, noted that humans and rats have similar brain structures involved in making adventurous decisions. Everything indicates that these findings are relevant to people.

The results of the study were published in the publication "Nature".

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