What do bullies and sex have in common?
The same part of the brain reacts to both.
In a recent study, researchers found that different types of fear are processed by different groups of neurons in mice, even if the animals act out those fears in the same way - which could have implications for addressing phobias and panic attacks in humans.
"We found that there seems to be a circuit for handling fear of predators – which has been described anatomically as a kind of defense circuit – but fear of members of the same species uses the reproductive circuit instead," says Bianca Silva of the European Molecular Biology Laboratory (EMBL) in Monterotondo, Italy, who carried out the work, "and fear of pain goes through yet another part of the brain."