I am quoting from a PLoS one press release of brainâ€™s â€˜Hate Circuitâ€™ identified:
People who view pictures of someone they hate display activity in distinct areas of the brain that, together, may be thought of as a â€˜hate circuitâ€™, according to new research by scientists at UCL (University College London).
The study, by Professor Semir Zeki and John Romaya of the Wellcome Laboratory of Neurobiology at UCL, examined the brain areas that correlate with the sentiment of hate and shows that the â€˜hate circuitâ€™ is distinct from those related to emotions such as fear, threat and danger â€“ although it shares a part of the brain associated with aggression. The circuit is also quite distinct from that associated with romantic love, though it shares at least two common structures with it.
“Hate is often considered to be an evil passion that should, in a better world, be tamed, controlled, and eradicated. Yet to the biologist, hate is a passion that is of equal interest to love. Like love, it is often seemingly irrational and can lead individuals to heroic and evil deeds. How can two opposite sentiments lead to the same behaviour?â€
â€œA marked difference in the cortical pattern produced by these two sentiments of love and hate is that, whereas with love large parts of the cerebral cortex associated with judgment and reasoning become de-activated, with hate only a small zone, located in the frontal cortex, becomes de-activated. This may seem surprising since hate can also be an all-consuming passion, just like love. But whereas in romantic love, the lover is often less critical and judgmental regarding the loved person, it is more likely that in the context of hate the hater may want to exercise judgment in calculating moves to harm, injure or otherwise extract revenge.”
an interesting view! My association here is certainly from Ludwig Börne
Es ist leicht den Haß, schwer die Liebe, am schwersten Gleichgültigkeit zu verbergen … Easy to disguise hate, difficult to hide love, and most difficult to conceal lack of interest.
The scientist brain’s hate circuit can be easily triggered by unfair reviews of their grants and papers.
Examining the editorial process, Goldsmith and colleagues reviewed 228 consecutive manuscripts submitted to the Journal of Investigative Dermatology in 2003 and found the odds of acceptance to be two times higher for manuscripts from which authors had excluded reviewers, compared to those whose authors had not done so. Quoted in Science, Goldsmith said â€œPeople know their assassins.â€