Neuroantomist Jill Taylor discusses what happened to her perceptions of reality while suffering a stroke. Jill studys the brain for a living so she knows technically from what she speaks. We know that the right hemisphere tells us about the here and now, plugs us into our day-to-day experience, giving us the ability to function, talk, and move. But what happens when the brain loses its grounding in the world and the left hemisphere which understands the spatial reality of the whole universe is unleashed?
Take a look http://www.ted.com/talks/view/id/229