Small part of brain itching for a fight

Neuroscientists track the physical source of aggression in mice

By Laura Sanders, 14:50 PM February 9, 2011

A cluster of nerve cells have founded their own tiny fight club. These cells, nestled deep in a primitive part of the brain, compel mice to aggressively maul not just intruder males, but also females and blown-up rubber gloves, a study finds. What’s more, the fight cells have an intertwined and thorny relationship with nearby “mate” cells, a discovery that may shed light on human sexual violence.

“This is absolutely awesome,” says neuroscientist Newton Canteras of the University of São Pau...

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