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Facts Aren't Enough: The Psychology Of False Beliefs

By Shankar Vedantam,
Tara Boyle, Maggie Penman, Camila Vargas Restrepo, Laura Kwerel
Published May 9, 2019 at 5:01 PM EDT
The myth that vaccines cause autism has persisted, even though the facts paint an entirely different story.
Renee Klahr
The myth that vaccines cause autism has persisted, even though the facts paint an entirely different story.

In 2012, as a new mom, Maranda Dynda heard a story from her midwife that she couldn't get out of her head. The midwife told her that years earlier, something bad had happened after she vaccinated her son. One minute he was fine, and the next, he was autistic. It was like "the light had left his eyes," Maranda recalled her saying. The midwife implored Maranda to go online and do her own research. So she did.

She started on Google. It led her to Facebook groups, where other moms echoed what the midwife had said.

"And they were just practically bombarding me with information," says Maranda. "Telling me, 'Your midwife's right. This is why I don't vaccinate. This is what happened to my child who I did vaccinate versus my child who I didn't vaccinate.' Things like that."

Maranda trusted them. She says it wasn't long before she had decided she wasn't going to vaccinate her child, either.

Eventually, she did more research and realized that the purported link between vaccines and autism wasn't real. She changed her mind, and vaccinated her daughter. But looking back, she can't believe how easy it was to embrace beliefs that were false.

"It is so, so easy to Google 'What if this happens' and find something that's probably not true," Maranda says. "Don't do that."

This week on Hidden Brain, we look at how we rely on people we trust to shape our beliefs, and why emotion can be more powerful than facts.

Hidden Brain is hosted by Shankar Vedantam and produced by Parth Shah, Jennifer Schmidt, Rhaina Cohen, Thomas Lu and Laura Kwerel. Our supervising producer is Tara Boyle. You can also follow us on Twitter@hiddenbrain.

Additional Resources:

The Influential Mind: What the Brain Reveals About Our Power to Change Othersby Tali Sharot

The Misinformation Age: How False Beliefs Spreadby Cailin O'Connor and James Owen Weatherall

Do as I Say, Not as I Do, or, Conformity in Scientific Networks by James Owen Weatherall and Cailin O'Connor

Copyright 2020 NPR. To see more, visit https://www.npr.org.

Science
Shankar Vedantam
Shankar Vedantam is the host and creator of Hidden Brain. The Hidden Brain podcast receives more than three million downloads per week. The Hidden Brain radio show is distributed by NPR and featured on nearly 400 public radio stations around the United States.
See stories by Shankar Vedantam
Tara Boyle
Tara Boyle is the supervising producer of NPR's Hidden Brain. In this role, Boyle oversees the production of both the Hidden Brain radio show and podcast, providing editorial guidance and support to host Shankar Vedantam and the shows' producers. Boyle also coordinates Shankar's Hidden Brain segments on Morning Edition and other NPR shows, and oversees collaborations with partners both internal and external to NPR. Previously, Boyle spent a decade at WAMU, the NPR station in Washington, D.C. She has reported for The Boston Globe, and began her career in public radio at WBUR in Boston.
See stories by Tara Boyle
Maggie Penman
See stories by Maggie Penman
Camila Vargas Restrepo
Laura Kwerel