What drives a man to jump from an airplane in flight or to climb with his bare hands on a 50-story skyscraper? Why do some people have the desire to live extreme experiences, going against the normal instinct of survival? A study conducted by researchers at Vanderbilt University and published in the journal "Journal of Neuroscience " identified the neurobiological mechanisms that underlie this type of behavior.
It seems that people are always looking for great experience, have a number of receptors in the brain that regulate dopamine, much lower than that of normal people. Dopamine is a fact
neurotransmitter in the brain that stimulates the feeling of pleasure and fulfillment. The lack of its autoreceptors, thus causing a difficulty to adjust the desire for new experiences, pushing people into more and more daring challenges.
"Our research," said David Zald responsible for this study "suggests that in these subjects, the brain is barely able to regulate dopamine. This condition makes the subject particularly sensitive to new ideas and situations that provide gratification and that normally induce a release of dopamine ".
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