Scientists have used brain scan images to create the world's first movie of the female brain as it approaches, experiences and recovers from an orgasm. The animation reveals the steady buildup of activity in the brain as disparate regions flicker into life and then come together in a crescendo of activity before gently settling back down again.
I'm sure that I remember that about a year ago (when I was pursuing an interest in neuroplasticity Icons passim) I saw a video in which Richard J. Davidson told a story about showing the Dalai Lama live brain scanning. The subject was asked to move a finger, obliged and fired a distinctive neural pattern. The Dalai Lama then asked him to imagine moving his finger. Again the subject obliged and fired off almost identical activity in the same area of the brain.
Maybe faking it is not so bad after all.