Brain Chemical Connects Us to Human Stories
When we watch characters on the screen, why do they make us laugh or cry? And why does one story make us want to support a charity or social cause? It turns out compelling human stories trigger a chemical response in our brains. Neuroscientist Dr. Paul Zak has been studying the neurochemical oxytocin for years, and learned that humans have a chemical response similar to animals when we find another human trust-worthy: a spike in our oxytocin makes us feel connected to another human being. Even when watching the human on a screen, this response is triggered—what Dr. Zak calls the golden rule response: “if you treat me well, in most cases my brain will synthesize oxytocin and this will motivate me to treat you well in return.”
Most recently, Dr. Zak conducted a study with several short films from St. Jude’s Hospital. When viewers connected with the characters in a short film about a father whose young son is dying of cancer, they had an increase in cortisol and oxytocin. That chemical boost ran parallel to feelings of empathy with the characters, which was increased when there was a strong “narrative arc”—a powerful dramatic rise and climax to the real people story line.
This doesn’t come as a big surprise to those of us working in nonprofit direct response and impact story-telling. We know that to get donors to give and communities to care, we have to tell powerful stories. We know that viewers must connect emotionally with our characters, just as they would with characters in a fiction film. We do this through not just their words and images, but through lighting techniques, music scoring and the pacing of our edits. But building empathy isn’t enough. We have to create a dramatic arc that builds to a climax. We have to create suspense around some kind of obstacle that the characters must overcome, whether it is in their past or present. And our viewers have to relate to that obstacle, even if it is not precisely the same for them.
This is why pre-interviewing potential characters is so essential for documentary-style stories based on real people. Before they go on camera, we need to understand what will be compelling, what will not be relatable, and what will build suspense for our viewers. And now it turns out that what we’re also doing is triggering those chemical responses in the brain that will make our subjects and their story connect to the brains of our viewers. In the case of nonprofit storytelling, we need those chemical responses to be strong, because we are usually looking for a response that extends to well after the video ends: we want a viewer to get involved in a cause, donate money, write to their elected officials, or change some previous behavior (stop smoking, lose weight, etc). So it turns out that all these years I thought I was an English major-turned-filmmaker, it turns out that I’m in the neuroscience business: triggering a brain response that helps people act on the golden rule, and do great things for others and the world.
Amy DeLouise is a director and producer who tells real people stories to help viewers connect with causes and take action.
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