Ah, but of course Stijn, but of course! The problem is finding a citation for something you've seen on TV, I shall try and locate it.

Edit: Nope, can't find it, as I remember they got six art critics from the local college to judge a set of artworks, then later told them several were by six year olds [Finger paintings] I remember one line in it was 'that is a very talented six year old, get her a studio!' but I'll be mogdored if I can find it, anyone know how you can find old TV show episodes? The're harder than scientific journals.

This is an interesting paper though: http://goldin-meadow-lab.uchicago.ed...art_GM1984.pdf