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COLUMBUS,  Ohio — If you want to get rid of unwanted, negative thoughts, try just ripping  them up and tossing them in the trash.

In  a new study, researchers found that when people wrote down their thoughts on a  piece of paper and then threw the paper away, they mentally discarded the  thoughts as well.

On  the other hand, people were more likely to use their thoughts when making  judgments if they first wrote them down on a piece of paper and tucked the  paper in a pocket to protect it.

Richard Petty

“However  you tag your thoughts — as trash or as worthy of protection — seems to make a  difference in how you use those thoughts,” said Richard Petty, co-author of  the study and professor of psychology  at Ohio State University.

Some  types of psychological therapy use variations of this concept by trying to get  patients to discard their negative thoughts. But Petty said this is the first  study he is aware of that has validated that approach.

“At  some level, it can sound silly. But we found that it really works — by physically  throwing away or protecting your thoughts, you influence how you end up using  those thoughts. Merely imagining engaging in these actions has no effect.”

The  findings suggest that people can treat their thoughts as material, concrete  objects, Petty said. That is evident in the language we use.

“We  talk about our thoughts as if we can visualize them. We hold our thoughts. We  take stances on issues, we lean this way or that way. This all makes our thoughts  more real to us.”

Petty  conducted the research with Pablo Briñol, Margarita Gascó and Javier Horcajo,  all of the Universidad  Autónoma de Madrid in Spain.

The  results are published online in the journal Psychological  Science and will appear in a future print edition.

For  the study, the researchers conducted three related experiments.

In  the first experiment, 83 Spanish high school students participated in a study  they were told was about body image. Each participant was told to write down  either positive or negative thoughts about his or her body during a  three-minute period.

All  the participants were asked to look back at the thoughts they wrote. Researchers  told half of the students to contemplate their thoughts and then throw them in  the trash can located in the room, “because their thoughts did not have to  remain with them.” The other half were told to contemplate their thoughts and check  for any grammar or spelling mistakes.

The  participants then rated their attitudes about their own bodies on three 9-point  scales (bad-good, unattractive-attractive, like-dislike).

Results  showed that for those who kept their thoughts and checked them for mistakes, it  mattered whether they generated positive or negative thoughts about their bodies.  As would be expected, participants who wrote positive thoughts had more  positive attitudes toward their bodies a few minutes later than did those who  wrote negative thoughts.

However,  those who threw their thoughts away showed no difference in how they rated  their bodies, regardless of whether they wrote positive or negative thoughts.

“When  they threw their thoughts away, they didn’t consider them anymore, whether they  were positive or negative,” Petty said.

In  a second study, 284 students participated in a similar experiment, except this  time they were asked to write negative or positive thoughts about something  most people believe is good: the Mediterranean  diet (the diet emphasizes high consumption of fruits, vegetables, legumes  and unrefined cereals, with olive oil as the basic fat).

In  this case, some threw the thoughts away, some left them on their desk, and some  were told to put the paper in their pocket, wallet or purse and keep it with  them.

All  participants were then asked to rate their attitudes toward the diet and  intentions to use the diet for themselves.

As  in the first study, those who kept the list of thoughts at their desk were more  influenced by them when evaluating the diet than were those who threw them away.  However, those who protected their thoughts by putting them in a pocket or  purse were even more influenced than those who kept the thoughts on their desk.

In  other words, those who wrote positive thoughts about the Mediterranean diet and  put those thoughts in their pocket rated the diet more favorably than those who  wrote positive thoughts and simply kept those thoughts on their desk. And,  those who wrote negative thoughts and put them in their pocket rated the diet  more negatively than those who kept their thoughts on the desk.

“This  suggests you can magnify your thoughts, and make them more important to you, by  keeping them with you in your wallet or purse,” Petty said.

But  how important is the physical action of throwing these thoughts away or keeping  them in your pocket? To find out, the researchers conducted a third experiment  using computers. In this case, 78 Spanish college students wrote their thoughts  in a computer word-processing document. Some later used a mouse to drag the  file into the computer recycle bin, while others moved the file to a storage  disk.

Just  as in the previous studies, participants made less use of negative thoughts  that they had trashed — by dragging them to the recycle bin — than did those  who saved the thoughts by transferring them to a disk.

In  one other condition, some participants were told to simply imagine dragging  their negative thoughts to the recycle bin or saving them to a disk. But that  had no effect on their later judgments.

“The  more convinced the person is that the thoughts are really gone, the better,”  Petty said. “Just imagining that you throw them away doesn’t seem to work.

“Of  course, even if you throw the thoughts in a garbage can or put them in the  recycle bin on the computer, they are not really gone — you can regenerate  them. But the representations of those thoughts are gone, at least temporarily,  and it seems to make it easier to not think about them.”

Petty  said the researchers plan to see if this technique could work to help people  who have recurrent negative thoughts that are intrusive and bothersome, such as  thoughts about the death of a loved one.

“It  is often difficult to get rid of these thoughts. We want to find out if there  is a way to keep those thoughts from coming back, at least for longer periods  of time.”

The  study was supported by grants from the U.S. National  Science Foundation and the equivalent agency in Spain.


Contact:  Richard Petty, (614) 292-3038;         Written  by Jeff Grabmeier, (614) 292-8457;

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