Prof. Robin Dunbar, an evolutionary psychologist at the University of Oxford, argues that the rational parts of the human brain shut down when experiencing the feelings of love.
Dunbar developed his theory after analyzing the findings of UK brain experiments carried out over a decade ago at the University College of London.
The magnetic resonance imaging (MRI) research looked at the brain activity of 17 volunteers as they were shown pictures of their boyfriends and girlfriends, with whom they were “truly, madly and deeply in love.”
Dunbar says that when the people gazed at images of their loved ones, the rational parts of their brain were affected by “rose-tinted spectacle syndrome” and their hearts ruled their heads, dulling their critical faculties.
“In a relationship you are in a trade-off between caution and just going for it. There is a view that emotion exists to get you off the fence.
“A purely rational organism would sit on the fence all the time to avoid being hurt. But if you don’t engage, you won’t form relationships. If the prefrontal cortex is shut down, that protective and cautious element goes