Can Drawing Make Us More Intelligent?

This is a thought that has been bothering me a lot lately. After all, they don't tell you this at art college or at univeristy, they don't even hint at it. But as one of my art teachers said, I thought rather pompously at the time: "There are two types of people in the world - those who see and those who don't see". I think I know what he means and possibly teachers who have a greater understanding of how each line and delineation of form works on the brain or consciousness would have the answer, but I am not so sure. I really have to think this one through. Is there really a difference between the right brained person and the left brained person. I would love to start some sort of research on this, because I have found over many years, those who can draw really well, are very perceptive. Perceptive in areas other than drawing. Oh of course, they can make superb representational works, but they are perceptive about life. I have also noticed that those who can't draw (or maybe won't draw) are not so psychologicaly astute as their so-called right brained brothers and sisters. Maybe I am drawing to broad a picture here and the sweep is too prejudiced, but I am going to investigate this and post back here later. I am putting on the brakes now and will report back in a few weeks. There must be something out there on the web that deals with this. Anyway, back to looking for a decent art class in London this week, and off to browse some delicious art materials stores.