American scientists found out that levels of dopamine, known as the “Horon of Pleasure”, increase both incentives related to stress. According to the proposed researchers of the new model, the emissions of the neurotiator are the reaction to the novelty and the significance of the incentive. Reviewing the role of dopamine article published in the journal Current Biology.
According to the theory of reward prediction errors, dopamine creates a strong sense of anticipation from obtaining results. It is assumed that the levels of the neurotransmitter can be traced every error that a person allows in an attempt to get a reward.
In the course of experiments on rodent mice, “knut” (electric shock) and “gingerbread” (sucrose) were offered. Tracking the levels of dopamine in the adjacent brain core with a genetically encoded sensor, researchers from the University of Vanderbilt showed that the neurotransmitter emissions cannot be explained only by participation in the remuneration system. Scientists using machine learning technologies have built a model of processes associated with dopamine emissions, and checked it using opthenetic experiments. According to it, the neurotransmitter emission patterns are consistent with the signals about the novelty and the significance of the incentive.
Scientists emphasize that their discovery will make the mechanism of operation of drugs, which usually increase the level of dopamine in the brain. Therefore, it is probably a dependency model that rely on the idea of the “dopamine” system of remuneration will have to revise.