More details about avoidance of errors

Neurons are bound to each other by synapses, which are specialized junctions for transmission of chemical molecules called neurotransmitters. The genetic mechanism overseeing the synaptic transmission of neurotransmitter dopamine and serotonin could have an influence on behaviour differences among individuals and contribute to diversity of the decision processes in the social environment.
Individuals with a rare mutation in this genetic mechanism are associated with diseases such as addictions and obesity.

Among the genes associated with the activity of dopamine, D2 dopamine receptor (DRD2) plays an important role. DRD2 polymorphisms, such as Taq1A and C957, influence the effectiveness of how a person changes their decision in regard to negative results, which were the result of a previous decision. With use of graphical research it was also found that in carriers of Taq 1A, there is lesser activity present in frontal part of brains, when performing tasks, which solutions were based on consequences of negative choices made in past. This shows that dopaminergic signalling is important for learning from errors and it seems that a reduced number of D2 dopamine receptors reduce the sensitivity for the negative consequences.

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