Study: Don’t blame big bullies but their brain

Oct 24, 2018, 8:32 AM EDT
(Source: [-_-] JORGE/flickr)
(Source: [-_-] JORGE/flickr)

Bullies and their social aggression are abhorrent. But why do some individuals choose to look down upon others, domineer the social circles and trample upon the accepted norms of behavior to derive fleeting sadistic pleasure? A new study explores the subject in the neurobiology of social aggression.

The study by Duke-NUS researchers attributes the tendency of abnormal social dominance to the activity of a growth factor protein, called brain-derived neurotrophic factor (BDNF), and its receptor, tropomyosin receptor kinase B (TrkB) in the brain, notes Science Daily.

In the experiment conducted over mice, researchers observed that specific molecular signaling in specialized nerve cells in the specific regions of the brain hampered their ability to navigate social hierarchies in a balanced manner, resulting in social aggression and bullying, reports Technology Networks.