It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
If you're a heavy metal fan, you've probably heard the Iron Maiden song "There's a Thin Line Between Love and Hate." As it turns out, those lyrics have a grain of truth in them, at least in a neurological sense.
In 2008, scientists at University College London in the U.K. published a study in which they included 17 subjects who'd expressed a strong hatred for another person -- typically, an ex-lover or a colleague. When the subjects' brains were mapped with an MRI scanner while they looked at pictures of the people they hated, activity was observed the putamen and insular cortex -- two brain regions that also light up when a person sees a picture of a loved one [source: Zeki, Robson].
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 'hate circuit' is distinct from those related to emotions such as fear, threat and danger – 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.