2. One example of the effect of neurotransmitters on human behavior is the effect of serotonin on aggression. serotonin is a neurotransmitter i.e. a chemical messenger in the brain which is released at the end of the pre-synaptic neuron, floats across the synapse and binds to receptor cells on the post-synaptic neuron, triggering an electrical impulse. Serotonin regulates emotion, sleep, arousal levels and appetite in the brain. Under normal circumstances, it whole caboodle in the frontal area of the brain to inhibit the amygdala, which controls anger, hero-worship and other steamy responses. But research has shown that low levels of serotonin turnover (how quickly it is recycled after use) can cause bring down inhibition of the amygdala and consequently higher levels of aggression.
A University of Cambridge take aim was conducted, aiming to investigate the link in the midst of serotonin levels and aggression, particularly the component serotonin played in social decision-making. Healthy participants had their diets manipulated by the researchers to reduce their serotonin levels.
When serotonin levels were low, the participants played games and functional magnetic resource imaging (fMRI) was used to analyze their reactions when exposed to images of happy, dark and neutral faces. The results showed that on viewing such images, the prefrontal lens cortex of the participants with low serotonin levels had a harder time controlling emotional responses. During the games, participants as well reacted very aggressively to what they perceived as unsporting behavior. Other tests ruled out the possibility that the participants were simply unrestrained losers. The researchers concluded that there could be a correlation between low serotonin levels and increased aggression, and that serotonin plays a precise role in social decision-making by keeping a check on aggressive emotional responses. The findings may also highlight why people become...If you want to get a full essay, order it on our website: Orderessay
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