Raised rates of serotonin and glutamate may drive extreme aggression

Increased rates of the neurotransmitters glutamate and serotonin are related to extreme aggression in male mice, finds a fresh study, indicating a similar mechanism could drive psychopathy and violence in human males. But, the writers say that when this adaptive species-typical aggression escalates into extreme aggression, the conduct becomes harmful. Preceding studies, in species that range from invertebrates to individuals, have found that serotonin the hormone in the mind that creates well-being is implicated in the management of aggression more than every other molecule. For example, in 2006, a study presented in the International Congress of Neuroendocrinology indicated that variations in one of two genes involved in the action of serotonin may influence aggression in men. A 2007 study found that engineering fruit flies to generate raised degrees of serotonin additionally increased rates of aggression in those flies. New study centered on the dorsal raphe nucleus the brain s sero
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