June 12, 2001 About one-third of the people who were exposed to a fake print advertisement that described a visit to Disneyland and how they met and shook hands with Bugs Bunny later said they remembered or knew the event happened to them.
The scenario described in the ad never occurred because Bugs Bunny is a Warner Bros. cartoon character and wouldn't be featured in any Walt Disney Co. property, according to University of Washington memory researchers Jacquie Pickrell and Elizabeth Loftus. Pickrell will make two presentations on the topic at the annual meeting of the American Psychological Society (APS) on Sunday (June 17) in Toronto and at a satellite session of the Society for Applied Research in Memory and Cognition in Kingston, Ontario, on Wednesday.
"The frightening thing about this study is that it suggests how easily a false memory can be created," said Pickrell, UW psychology doctoral student.
"It's not only people who go to a therapist who might implant a false memory or those who witness an accident and whose memory can be distorted who can have a false memory. Memory is very vulnerable and malleable. People are not always aware of the choices they make. This study shows the power of subtle association changes on memory."
The research is a follow-up to an unpublished study by Loftus, a UW psychology professor who is being honored by the APS this week with its William James Fellow Award for psychological research; Kathryn Braun, a visiting scholar at the Harvard Business School; and Rhiannon Ellis, a former UW undergraduate who is now a doctoral student at the University of Pittsburgh. In the original study, 16 percent of the people exposed to a Disneyland ad featuring Bugs Bunny later thought they had seen and met the cartoon rabbit.
In the new research, Pickrell and Loftus divided 120 subjects into four groups. The subjects were told they were going to evaluate advertising copy, fill out several questionnaires and answer questions about a trip to Disneyland.
The first group read a generic Disneyland ad that mentioned no cartoon characters. The second group read the same copy and was exposed to a 4-foot-tall cardboard figure of Bugs Bunny that was casually placed in the interview room. No mention was made of Bugs Bunny. The third, or Bugs group, read the fake Disneyland ad featuring Bugs Bunny. The fourth, or double, exposure group read the fake add and also saw the cardboard rabbit.
This time 30 percent of the people in the Bugs group later said they remembered or knew they had met Bugs Bunny when they visited Disneyland and 40 percent of the people in the double exposure group reported the same thing.
"'Remember' means the people actually recall meeting and shaking hands with Bugs," explained Pickrell. "'Knowing' is they have no real memory, but are sure that it happened, just as they have no memory of having their umbilical cord being cut when they were born but know it happened.
"Creating a false memory is a process. Someone saying, 'I know it could have happened,' is taking the first step of actually creating a memory. If you clearly believe you walked up to Bugs Bunny, you have a memory."
In addition, Pickrell said there is the issue of the consequence of false memories or the ripple effects. People in the experiment who were exposed to the false advertising were more likely to relate Bugs Bunny to other things at Disneyland not suggested in the ad, such as seeing Bugs and Mickey Mouse together or seeing Bugs in the Main Street Electrical Parade.
"We are interested in how people create their autobiographical references, or memory. Through this process they might be altering their own memories," she said. "Nostalgic advertising works in a similar manner. Hallmark, McDonald's and Disney have very effective nostalgic advertising that can change people's buying habits. You may not have had a great experience the last time you visited Disneyland or McDonald's, but the ads may be inadvertently be creating the impression that they had a wonderful time and leaving viewers with that memory. If ads can get people to believe they had an experience they never had, that is pretty powerful.
"The bottom line of our study is that the phony ad is making the difference. Just casually reading a Bugs Bunny cartoon or some other incidental exposure doesn't mean you believe you met Bugs. The ad does."
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