the “right brained/left brained” lay theory of brain lateralization has been on the ropes for awhile and the results of a new two year study confirm that there is no such thing as ‘right-brained’ or ‘left-brained’ personality types. maybe the title to “drawing on the right side of the brain” (which is a great book regardless of the limits of it’s central metaphor ) should be changed to drawing on the top of the brain. whether right or left or top or bottom, all the current brain theories you can imagine are deeply linked to the the computational metaphor which is, of course, merely a metaphor.