Need some help losing weight? Try playing Tetris game for three minutes!

Tetris is a hugely popular tile matching video game created in Moscow in 1984.
Now psychologists at Plymouth University say the visual stimulation provided by the game could reduce naturally occurring cravings for long enough to ward them off.

Craving is a common problem for people trying to quit junk food, smoking or other drugs. It is unpleasant and makes people feel that they have to wait until the right moment to quit.

Researchers had used visual games to interrupt cravings before, but only when they had induced those cravings first, said Jackie Andrade, a psychology professor at Plymouth University's Cognition Institute in the U.K. For this study, people's cravings happened - or did not happen - naturally. "Naturally occurring cravings might be harder to disrupt because they are triggered by internal states like hunger," Andrade said. "We chose Tetris because we wanted a task that would be interesting, demanding and highly visual."

The study

She and her team had 119 college-aged, primarily female, students describe what, if anything, they were craving, and how badly. Then they instructed the students to play Tetris for three minutes. For half of the students, selected at random, the game worked fine. For the other half, only a load screen and error message displayed and they could not play. Then all of the students filled out the craving questionnaire again. Two thirds of them reported craving something at the beginning of the test: 58 wanted food or a drink, 10 wanted caffeine, and 12 wanted nicotine. The remaining 39 didn't crave anything initially.

Cravings got weaker over time for everyone. But they weakened faster and to a greater extent among participants who played Tetris, the authors wrote in the journal Appetite. For instance, one tool they used measured craving strength on a scale from 1 to 100. Among people who reported initially craving something, the strength of those cravings fell from 59 to 45 for Tetris players, on average, and from 58 to 55 in the comparison group.

Why Tetris

The reason for the lower cravings, said researchers, is that Tetris is a fast-moving visual game that requires attention to shapes and positions. That distracts the part of the brain that produces imagery of the thing you crave and therefore makes it harder to crave. It's an aspect of the game that anyone can test. "Next time you play Tetris, try to visualize a friend's face," said Andrade. "It's not easy to do without your game suffering."
Professor Andrade said the research tested elaborated intrusion (EI) theory, which dictates that imagery is central to craving and a visual task should therefore decrease it. "Feeling in control is an important part of staying motivated, and playing Tetris can potentially help the individual to stay in control when cravings strike," Professor Andrade said.
"It is something a person can quickly access for the most part whether they are at work or at home, and replaces the feeling of stress caused by the craving itself. Ultimately, we are constantly looking for ways to stimulate cravings for healthy activities, such as exercise, but this is a neutral activity that we have shown can have a positive impact."

The psychology of cravings
Craving interferes with other tasks -- it grabs our attention, and our ability to think about other things at the same time. This is because we have a limited capacity in our brains to hold things in attention and work on them. Thinking about a pyramid, for example, and rolling it around in imaginary space requires us to hold the shape in our attention and work on how it would look as it moves.
What this and some other recent studies do, is flip this around. If craving interferes with other tasks, what about using other tasks to interfere with craving? And if craving is linked to imagery, what about using another task that requires similar limited cognitive space -- like this game?

Bottom line
The game also has another quality that makes it particularly useful in distracting cravers, said Andrade: it's fun. That makes it far more likely to be used than trying to play with an imaginary pyramid in your mind's eye.
Any visual or multisensory activity might have the same effect as Tetris, Andrade said. She found in an earlier study that making shapes out of plastic led to a similar outcome. But the researchers did not measure how long the reduction in cravings lasted, and it might not be very long, she said. However, people trying to lose weight could try incorporating Tetris into their lives, Andrade said. It is important that people are motivated to play the game for it to be an effective tool to fight cravings. And as a positive side effect you may actually become a very skillful player!

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Via: Fixr
Sources: http://medicalxpress.com/, http://www.medicaldaily.com/, http://www.theguardian.com/, http://news.discovery.com/, http://www.solarnews.ph/