East is East and West is West， and the difference between them is starting to turn up even on brain scanners.

New brain research is adding high-tech evidence to what lower-techpsychology experiments have found for years: Culture can affect not just language and custom， but how people experience the world at stunningly basic levels-whatthey see when they look at a city street， for example， or even how they perceive asimple line in a square.