How well do you know GMO food?

New Delhi: The people who hold the most extreme views against genetically modified foods think they know the most about GMO (Genetically Modified Organism) food science, but actually know the least, according to new research. Researchers asked more than 2,000 US and European adults for their opinions about GM foods.

The surveys asked respondents how well they thought they understood genetically modified foods, then tested how much they actually knew with a battery of true-false questions on general science and genetics. Despite a scientific consensus that GMO foods are safe for human consumption and have the potential to provide significant benefits, many people oppose their use.

More than 90 percent of study respondents reported some level of opposition to GMO foods. Two research teams were separately investigating the same topic, and combined forces once they learned of each other’s pursuit, says Sydney Scott, assistant professor of marketing in Olin Business School at the Washington University in St. Louis.

“It’s interesting that these data suggest the psychology of GMO foods is different in important ways from the psychology of other controversial scientific topics, such as climate change,” Scott says. The paper’s key finding is that the more strongly people report being opposed to GM foods, the more knowledgeable they think they are on the topic, but the lower they score on an actual knowledge test.

“This result is perverse, but is consistent with previous research on the psychology of extremism,” says Phil Fernbach, the study’s lead author and professor of marketing at Colorado. “Extreme views often stem from people feeling they understand complex topics better than they do.”

A potential consequence of the phenomenon, according to the paper’s authors, is that the people who know the least about important scientific issues may be likely to stay that way, because they may not seek out — or be open to — new knowledge. The authors also explored other issues, such as gene therapy and climate change denial.

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