Aggression And Its Effects On Human Behavior Essay

2002 Words9 Pages
Aggression plays a significant role in the survival of many organisms. Studies have shown that aggression may be an evolved behavior to overcome certain adaptive problems (Buss & Duntley, 2006; Buss & Shackelford, 1997). Aggression is often used to acquire resources, protect mates and offspring, and to warn off predators and to hunt prey. Even though, aggression has proved to be useful for the survival of many organisms it is still a costly behavior to express. Aggression can often result in the injury or death of organisms that use this behavior. Due to the high risks associated with aggressive behaviors, it is possible the brain may have evolved certain mechanisms to control the expression of this behavior (Wong et al., 2016). There have been many studies conducted that suggest the hypothalamus or the lateral septum (LS) are involved in the suppression of aggression (Bard, 1928; Potegal, Blau, & Glusman, 1981; Lee & Gammie, 2009). Bard (1928) conducted a series of experiments that involved the removal of different areas of the diencephalon (area above the brain stem) of cats. The diencephalon is an area of the brain that contains the hypothalamus (Bard, 1928). Bard (1928) presented evidence that the removal of the diencephalon from the cranial to the middle and the removal of the dorsal part of the thalamus elicited a hostile response from the subjects. Moreover, in the 1980’s, it was shown that the stimulation of the septal region inhibited intraspecific aggression
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