There’s an interesting article by Jonathan Gottschall, originally published in the Boston Globe, on the results of research on fiction and its effects on us:
Until recently, we’ve only been able to guess about the actual psychological effects of fiction on individuals and society. But new research in psychology and broad-based literary analysis is finally taking questions about morality out of the realm of speculation.
This research consistently shows that fiction does mold us. The more deeply we are cast under a story’s spell, the more potent its influence. In fact, fiction seems to be more effective at changing beliefs than nonfiction, which is designed to persuade through argument and evidence. Studies show that when we read nonfiction, we read with our shields up. We are critical and skeptical. But when we are absorbed in a story, we drop our intellectual guard. We are moved emotionally, and this seems to make us rubbery and easy to shape.