The idea was a radical one, but today we know that primitive versions of human emotions of rage, fury and lust are experienced by other species. Their work strengthens the idea that similar neural circuits underlie emotions even in species as different as mouse and man. Next, by stimulating various mouse neurons with blue light, they were able to find a cluster of 3000-4000 cells responsible for aggression. This suggests, said Mr. Anderson, that both mating and aggressive behaviour arise from neurons in the same region of the brain. We want to cure disorders like depression, but we need to recognise that these are hard problems,” Mr. Anderson said.

Source: The Hindu January 17, 2018 19:30 UTC