Strength in numbers when resisting forbidden fruit


June 6, 2013
Brain & Behavior

A new study from the University of British Columbia helps explain how people become obsessed with forbidden pleasures.

The study, which will appear in an upcoming edition of Cognitive, Affective and Behavioral Neuroscience journal, shows that when people are forbidden from something, it takes on a new level of focus.

“Our findings show that when individuals are forbidden from everyday objects, our minds and brains pay more attention to them,” says lead author Grace Truong, a graduate student in UBC’s Dept. of Psychology. “Our brains give forbidden objects the same level of attention as our own personal possessions.”

The study’s most important finding, though, is that obsession is not as strong if others are also denied: when an object is forbidden to a group, the allure of the object drops dramatically.

This helps to explain why group diet techniques such as Weight Watchers can be more successful than dieting alone. It also offers important insights for compulsive hoarding and parents seeking to help their children’s attachment to toys and other possessions.

For the study, groups of participants were shown images of everyday objects and told the objects were either theirs, someone else’s, forbidden to them or forbidden to everyone. Using electronic brain imaging and memory tests, researchers found the forbidden objects were recognized as well as self-owned objects.

Strength in numbers when resisting forbidden fruit“Since the days of Eve and the apple, scholars have been interested in our attraction to items we should avoid,” says UBC Psychology Prof. Todd Handy, a co-author of the study. “Today, it is things like jumbo soft drinks, fatty foods and illicit substances. These new findings help to explain how our brain processes forbidden objects and suggests that, for resisting temptation, there’s strength in numbers. It’s harder to go it alone.”

A version of the study, An unforgettable apple: Memory and attention for forbidden objects, can be viewed online or is available upon request.


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