Cover Image: May 2012 Scientific American Magazine See Inside

How Advertisements Manipulate Behavior [Preview]

Can subliminal advertisements influence our behavior? New research says yes—but only under certain circumstances














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OZZY OZBOURNE: Accused of using hidden messages, parents unsuccessfully sued Osborne, claiming his music contained secret backmasked tracks that had driven their children to commit suicide. Image: Roger Ressmeyer/Corbis

In Brief

  1. For decades the public has feared subliminal advertising, viewing it as akin to brainwashing. Scientists, however, view it as largely a myth.
  2. Recent experiments demonstrate that subliminal messages flashed onto a screen or computer monitor can influence our decisions only if we are open to persuasion because of a particular need, such as thirst.
  3. Despite our fear of being manipulated, our surroundings exert an unconscious influence on our decisions every day. For example, the smell of grilling meats can make us feel hungry, and the music in a supermarket can steer us toward certain purchases.

The birth of subliminal advertising reads almost like a script from a television show. In this real-life story, the spotlight falls on James M. Vicary, an independent marketing researcher.

On September 12, 1957, Vicary called a press conference to announce the results of an unusual experiment. Over the course of six weeks during the preceding summer, he had arranged to have slogans—specifically, “Eat popcorn” and “Drink Coca-Cola”—flashed for three milliseconds, every five seconds, onto a movie screen in Fort Lee, N.J., while patrons watched Picnic. Vicary argued that these messages were too fast for filmgoers to read but salient enough for the audience to register their meaning subconsciously. As proof, he presented data indicating that the messages had increased soda sales at the theater by 18 percent and popcorn sales by 58 percent.


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  1. 1. Neil5150 09:03 AM 4/20/12

    In Malcolm Gladwell's book What the dog saw, there is a short essay on a copy editor that coined the slogan for Alka-Seltzer. Shortly after the "plop plop fizz fizz O what a relief it is" was coined and placed in a commercial using a tablet per plop their sales doubled; despite the recommended usage was still just one plop.

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  2. 2. promytius 10:10 AM 4/20/12

    Oh, I get it! We're just stupid! The category is Best Species with herd mentality and pliable behavior, and the winner is, Homo Sapiens! Let's face it, if humans weren't so pliable, NO ONE would ever get rich! Pass the corn; I love it, but I don't know why!

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  3. 3. DrKrishnaKumariChalla 10:53 PM 4/20/12

    No advertisement can influence me to buy things. If I am thirsty (open to persuation?), I will never head for cola shops - ads or no ads.I will go for coconut water. Because it is written on my mind soft drinks are bad and coconut water is good. No celebrity or model advertising for a particular brand can erase that.You can conduct an experiment on me if you want.

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  4. 4. turtle2258 08:59 PM 4/25/12

    The ads we all see and hear are much more persuasive than the ones we don't. If this wasn't so we would be healthier, less impulsive, wealthier and not vastly a nation in debt; a credit card compulsive consumer. Advertizements are writen or edited by psychologists and persuation professionals. And until you know more than them, or at least understand how the future is being created by our choices now, there will ALWAYS be a disparity between the wise and the impulsive. The rich will get richer and the poor will get poorer. Who's got the power. A group called the "Doubie Brothers" sang the wise man got the power; or @ least they'll drink "coconut water" and "walnuts". I'm a "walnut man". I used to be a "marlburo" man. Now* I made a new plan, Stan and got myself free>< I am Stan.

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  5. 5. sunnystrobe 10:59 PM 4/25/12

    promytius: Know why you love popcorn? It's laced with addictive chemicals! Which ones? That's a trade secret, of course; where would we be in The Land of the Free without a certain censorship of freedom of information...
    Coca Cola is the most sold item in any supermarket in the world, due to its addictiveness, too. I read a list of contents once which had to be published for the European Courts: It contains a smart sort of concomitant addictive ingredients, with sugar causing a heroine-like brain reaction anyway, plus mace flour, classified as a 'spicing', which gets metabolized in our body into a drug-like substance. Blame the addict, not the producer!
    Let's get bottle-weaned, soon, and opt for young coconuts!
    It helps to have a day in the week without any food that has seen the inside of a factory (visit Colour Eating on google), though if we all do it we ruin the 'National Growth Product of Democraczy'!

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  6. 6. dubina 02:22 AM 4/26/12

    Before you go too far, try to separate the meaning of "subliminal advertising" from "liminal advertising".

    "Call NOW!!!" for example.

    We are more shaped and ordered by blatant ads than subtle ones. Blatant ads work because we are inured to them.

    (Call attention to stuff that matters.)

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