clipped from: lifestyle.msn.com 
How do I love thee?
I love thee with serotonin produced by my raphe Nuclei. I love thee with testosterone receptors deep in my hypothalamus. I love thee with dopamine that floods my primitive lizard brain.
Actually, I hope I love my wife with all my major brain parts — but who knows? The truth is, I don't know how I love her. That's the whole point of today's experiment. We'll see.
Right now, I'm stuck inside a whirring, clunking MRI machine at New York University. Six inches above my nose hovers an image of my smiling wife wearing a black spaghetti-strap dress.
Inside the MRI tunnel, the image of my wife vanishes from the screen. And up pops another female face. This woman has the tip of her pinkie perched alluringly on her lips. Huge lips.
It's Angelina Jolie. That's another part of the experiment. The scientists and I want to see how my love for my wife compares with my feelings for Angelina Jolie.