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Everyone has a response to anger is different, there are overwhelming but some are mediocre. The cause of irritable people have turned out to be affected by the levels of serotonin in the brain.
Researchers from the University of Cambridge revealed the fluctuations in hormone levels of serotonin in the brain affects how a person's response to regulate anger, so they can see why someone is more likely to be aggressive.
This study memerupakan the first to show how this chemical helps regulate behavior in the brain. The results of this study were published in the journal Biological Psychiatry.
It was found that low levels of serotonin in the brain to make the communication between brain areas of the limbic system that regulates
emotion (amygdala) and the frontal lobes weaker compared to those that serotonin levels were normal.
This condition shows when low serotonin levels in the brain then it will be difficult for the prefrontal cortex area of the brain to control emotional responses to anger generated within the amygdala.
If the communication is weak is more difficult for the prefrontal cortex to control the feelings of anger generated within the amygdala. As a result, these people will tend to be more aggressive and the most sensitive.
"This technology has made us to look into the brain and examine how serotonin helps regulate our emotional impulses," said Dr. Molly Crockett, a researcher from Cambridge's Behavioural and Clinical Neuroscience Institute, as dikutuip ScienceDaily.
In this study, healthy volunteers changed his diet. On certain days are given food that contains little tryptophan to inhibit the formation of serotonin, then the next day fed with normal akdar tryptophan.
Researchers then scan the brains of volunteers with functional magnetic resonance imaging (fMRI) to measure how elapsed areas in the brain to react and communicate with each other when there is a certain emotion.
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