A wonderful article by Yale professor Paul Bloom on imagination:

Our main leisure activity is, by a long shot, participating in experiences that we know are not real. When we are free to do whatever we want, we retreat to the imagination—to worlds created by others, as with books, movies, video games, and television (over four hours a day for the average American), or to worlds we ourselves create, as when daydreaming and fantasizing. While citizens of other countries might watch less television, studies in England and the rest of Europe find a similar obsession with the unreal.

Another portion talks about emotional response:

The emotions triggered by fiction are very real. When Charles Dickens wrote about the death of Little Nell in the 1840s, people wept—and I’m sure that the death of characters in J.K. Rowling’s Harry Potter series led to similar tears. (After her final book was published, Rowling appeared in interviews and told about the letters she got, not all of them from children, begging her to spare the lives of beloved characters such as Hagrid, Hermione, Ron, and, of course, Harry Potter himself.) A friend of mine told me that he can’t remember hating anyone the way he hated one of the characters in the movie Trainspotting, and there are many people who can’t bear to experience certain fictions because the emotions are too intense. I have my own difficulty with movies in which the suffering of the characters is too real, and many find it difficult to watch comedies that rely too heavily on embarrassment; the vicarious reaction to this is too unpleasant.

The essay is based on an excerpt of his book, How Pleasure Works: The New Science of Why We Like What We Like, which looks like a good read if I could clear out the rest of the books on my reading pile.

A reading pile that, of course, contains too little fiction.