The B-Spot on Love and Lust
The brain science of sex and love and attraction. In a study published in 2002, anthropologist Helen Fisher PhD of Rutgers University and a multi-disciplinary team of experts recruited 40 young people madly in love – half with love returned, the other half with love rejected – and put them into an MRI with a photo of their sweetheart and one of an acquaintance. Each subject looked at the sweetheart photo for 30 seconds, then – after a diversion task – at the acquaintance photo for another 30 seconds. They switched back and forth for 12 minutes.
The result was a revealing photo album of the brain in love. Think like a brain scientist and you too would be excited by activity in the right ventral tegmental area. This is the part of the brain where dopamine cells project into other areas of the brain, including the posterior dorsal caudate and its tail, both which are central to the brain’s system for reward and motivation. The sweetheart photos, but not the acquaintance photos, were the cause. In addition, several parts of the prefrontal cortex that are highly wired in the dopamine pathways were mobilized, while the amygdala, associated with fear, was temporarily mothballed
When Love Blossoms
Romantic love, Dr Fisher explained in a lecture at the 2004 American Psychiatric Association’s annual meeting, is not an emotion. Rather, it’s “a motivation system, it’s a drive, it’s part of the reward system of the brain.” It’s a need that compels the lover to seek a specific mating partner. Then the brain links this drive to all kinds of specific emotions depending on how the relationship is going. All the while, she went on to say, the prefrontal cortex is assembling data, putting information into patterns, making strategies, and monitoring the progress toward “life’s greatest prize.”