As I write this, the Dalai Lama is star attraction at a conference in Sydney on 'the science of happiness'. Work is underway at research centres all over the world on 'the effect of mindfulness on the brain' and validation of the positive effects from meditation. And there's a flood of books being published on related themes, often by scientists who practise Buddhist meditation.
Interesting, isn't it, how difficult it is to 'scientifically validate' a practise that has been found by millions of people for thousands of years to be beneficial, isn't it. I don't suppose it says anything about a cultural prejudice against anything that sounds 'subjective' or possibly 'spiritual', does it?