Scientific American has a fascinating essay that explores why human beings are captivated by stories:
Storytelling is one of the few human traits that are truly universal across culture and through all of known history. Anthropologists find evidence of folktales everywhere in ancient cultures, written in Sanskrit, Latin, Greek, Chinese, Egyptian and Sumerian. People in societies of all types weave narratives, from oral storytellers in hunter-gatherer tribes to the millions of writers churning out books, television shows and movies. And when a characteristic behavior shows up in so many different societies, researchers pay attention: its roots may tell us something about our evolutionary past.
To study storytelling, scientists must first define what constitutes a story, and that can prove tricky. Because there are so many diverse forms, scholars often define story structure, known as narrative, by explaining what it is not. Exposition contrasts with narrative by being a simple, straightforward explanation, such as a list of facts or an encyclopedia entry. Another standard approach defines narrative as a series of causally linked events that unfold over time. A third definition hinges on the typical narrative’s subject matter: the interactions of intentional agents—characters with minds—who possess various motivations.
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But the best stories—those retold through generations and translated into other languages—do more than simply present a believable picture. These tales captivate their audience, whose emotions can be inextricably tied to those of the story’s characters. Such immersion is a state psychologists call “narrative transport.”
Researchers have only begun teasing out the relations among the variables that can initiate narrative transport. A 2004 study by psychologist Melanie C. Green, now at the University of North Carolina at Chapel Hill, showed that prior knowledge and life experience affected the immersive experience. Volunteers read a short story about a gay man attending his college fraternity’s reunion. Those who had friends or family members who were homosexual reported higher transportation, and they also perceived the story events, settings and characters to be more realistic. Transportation was also deeper for participants with past experiences in fraternities or sororities. “Familiarity helps, and a character to identify with helps,” Green explains.
Read it all here.