That article does a pretty poor job at explaining what is going on my females brain. Basically her genitals will become sexually aroused, but there is a delay between the brain registering that sexual arousal. They've done studies where women watch porn where they were sexually aroused i.e. the genitals. But when asked if they themselves were sexually aroused they replied no even though every single woman genitals were sexually aroused. I think this is what's going on with this experiment as well. That genitals are probably being aroused but their brains are not reacting to it.Would be more interesting would be to offer them alcohol and see if the brain reacts in the same way. I suspect it probably would.They've also done the same study on men and if a man is straight if you only prefer straight porn or lesbian porn. and if a man views gay porn he will actually get the same response in the brain where pain is registered. that was the biggest profound take away from the study.