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Subliminal advertising leaves its mark on the brain

UCL (University College London) researchers have found the first physiological evidence that invisible subliminal images do attract the brain's attention on a subconscious level. The wider implication for the study, published in Current Biology, is that techniques such as subliminal advertising, now banned in the UK but still legal in the USA, certainly do leave their mark on the brain.

Using fMRI, the study looked at whether an image you aren't aware of ¬– but one that reaches the retina – has an impact on brain activity in the primary visual cortex, part of the occipital lobe. Subjects' brains did respond to the object even when they were not conscious of having seen it.

Dr Bahador Bahrami, of the UCL Institute of Cognitive Neuroscience and the UCL Department of Psychology, said: "What's interesting here is that your brain does log things that you aren't even aware of and can't ever become aware of. We show that there is a brain response in the primary visual cortex to subliminal images that attract our attention – without us having the impression of having seen anything. These findings point to the sort of impact that subliminal advertising may have on the brain. What our study doesn't address is whether this would then influence you to go out and buy a product. I believe that it's likely that subliminal advertising may affect our decisions – but that is just speculation at this point."

Subjects wore red-blue filter glasses that projected faint pictures of everyday objects (such as pliers and an iron) to one eye and a strong flashing image known as 'continuous flash suppression' to the other. This recently developed technique effectively erases subjects' awareness of the faint images so that they were unable to localise the faint images on screen. At the same time, subjects performed either an easy task – picking out the letter T from a stream of letters, or a task that required more concentration in which subjects had to pick out the white N or blue Z from the same stream.

During the harder task, the subjects' brains blocked out the subliminal image and the fMRI scan did not detect any associated neural activity. This finding – that the brain does not pick up on subliminal stimuli if it is too busily occupied with other things – shows that some degree of attention is needed for even the subconscious to pick up on subliminal images.

Dr Bahrami said: "This is exciting research for the scientific community because it challenges previous thinking – that what is subconscious is also automatic, effortless and unaffected by attention. This research shows that when your brain doesn't have the capacity to pay attention to an image, even images that act on our subconscious simply do not get registered."

The research challenges the theory of the pioneering American psychologist and philosopher, William James, (1842–1910), who said: "We are conscious of what we attend to – and not conscious of what we do not attend to".

The team's findings show that there are situations where consciousness and attention don't go hand in hand.

From University College London

March 8, 2007

Comments

Very interesting

September 3, 2008 by Anonymous, 43 weeks 3 days ago
Comment id: 31773

Your post is very interesting. I personally believe that subliminal messaging is a complicated matter, and although it might not work as many people think, it still works to some extent. I linked you back from my page. If you want to see my view on the matter visit http://encefalus.com/cognitive/subliminal-messaging-subliminal-advertisi...

Encefalus -- http://encefalus.com

A Minor Puddle of Truth

March 16, 2008 by Renaisauce, 1 year 15 weeks ago
Comment id: 28139

I'm glad that this anonymous dude has reopened a discussion a post from last March. It's almost like an anniversary posting. It reminded me that I blogged on a closely related topic just before Super Tuesday. I feel that it is appropriate to re-post it here.

"I've enjoyed watching and following the elections because people get all kinds of crazy when it comes to having the edge on knowing who is going to be the nominee (they could just ask me, but if they want to waste time, then that's just fine.) The problems start when people start turning to science for these answers. Turning to science is great, that's what we want, but it needs to be towards credible science. Unfortunately, not all science is as credible as we would like it to be. Send donuts to Renaisauce.

Take these guys: Lucid Systems, a 'cutting edge market research firm', seeks to understand what people are actually thinking, instead of what they think they are thinking. They use scalp EEGs and biometrics to see how people respond to different stimuli presented them. In the attached clip, they show people responding to different candidates. They then make assumptions based on what they see. Send donuts to Renaisauce.

Here's the great part. Say a person claims to want to vote for Obama, and that same person says he/she dislikes Hillary. Then they put on EEG caps and a sweat meter and watch tape of Clinton and Obama in debates. Lo and behold, they have strong emotional responses when they see Hillary! This means that although they say they dislike Hillary, they actually like Hillary subconsciously. Score one for the Hillster. Send donuts to Renaisauce.

Let's assume, for a moment that this is legit, and that advertisers can really detect, with accuracy, how people really feel about things based on their pulse, sweat and EEG. The guy is still going to vote for Obama. It doesn't really matter what his unconscious thinks, because only a conscious person can vote! If people all loved Tommy Tancredo, but never ever thought to support him, (he was a candidate waaaay back when, if you've forgotten,) then the EEG doesn't really matter. People aren't going to do something because of illogical unconscious suggestions. That never happens. Send donuts to Renaisauce.

I'm really glad that this technology wasn't around during Freud's time. Do you know how many people would be in love with their mothers under that kind of influence? What's more, can you imagine if this becomes the new method for polling? Can you imagine the pundits going crazy because a high percentage of Americans subconsciously favored a Scarlett Johansen/Darth Vader presidential ticket? Let's move on. Send donuts to Renaisauce.

I'm not saying that EEG's and other brain analysis techniques aren't useful. I'm saying that in the hands of a marketing company, it could be a disaster. Let's be careful, people."

The Great Ocean of Lies

March 15, 2008 by Anonymous, 1 year 15 weeks ago
Comment id: 28134

So...not surprising that in response to a post about "the first physiological evidence that invisible subliminal images do attract the brain's attention on a subconscious level", we get corporate disinformers posting the tired company line of lies about hoaxes and nonexistence.

The Corporation's model of behavior is insanity, and immorality for the sake of profit. Anything and everything is fair game to them when control and money are at stake.

Embedded text ("SEX" most of all) is everywhere in print advertising. Look in the hair, foreheads, the "blank" textured areas of ads. Nothing BUT squiggly emotion words and god knows what else. Open any magazine right now. Study.

In an arena that demands profit and results, billions spent on human motivation R&D for more than half a century?

Of course they're using subliminals; It exists in the same world that allows corporation to already experiment on humans in every aspect of existence, by any means, with ever-decreasing regulation (corporate rule of government).

I don't know, you know? This world...

The lies are huge, and humans are effectively zombies at this point, so continue to LEAD! Hell approaches!

sub-liminal police

March 3, 2008 by Anonymous, 1 year 17 weeks ago
Comment id: 27901

who are the "police" of the subliminal.
banned in the U.K. ? any arrests,or fines recorded?
allowed in the U.S. ? society has left the lambs consciousness at lion's den.
daft is he who refuses to surmise the armed forces,the political bodies, the advertising world's,that use ,abuse,twist,and manipulate with visual,vocal,freedom over the masses.
the fact is there are or is such a governing unit.we know this from their rulings. who pays them? where do their loyalties reside? above checks and balances?
research and development?
please ...

Subliminal or Supraliminal

December 10, 2007 by Anonymous, 1 year 29 weeks ago
Comment id: 26385

Given the origin and the negative connotations associated with the term "Subliminal Advertising" or any other Subliminal phenomenon it might as well be better to re-define the terminology. A number of vaguely defined terms are being used in discussions of subliminal effects. For instance, that information are being received unconsciously, subconsciously, not consciously, without awareness, unintentionally, below the attentional threshold or some other related description. The terms in the previous sentence are not synonyms and furthermore they are often used in a careless manner. Without defining them all I will at least discuss one of them, Subliminal.

From my point of view an organism can either receive a stimulus or it cannot receive it. And there is of course an entire spectra of levels in between receiving and not receiving. Where the "real" threshold is, is of course an interesting area to study. That is, how faint a stimulus can be before it becomes subliminal. From this last sentence you can conclude that my position is that a subliminal stimulus should not, in any way, be registered by an organism. Otherwise the stimulus is not subliminal.

There is something paradoxical with researchers studying a phenomenon that according to the definition of the studied phenomenon should not generate an effect in the studied organism. Thereby the researcher should not be able to measure any effect either.

Consider this; you are studying the phenomenon of subliminal advertising, subliminal messages, subliminal marketing, subliminal smells or the like. At the same time, as a researcher you are aware of the fact that the very concept of "subliminal" means that whatever stimuli is being used it will be insufficient as a stimuli. That is, since it is defined as subliminal it will be below the threshold of having any effect on the human brain. Consequently it would be more honest as a professional researcher and more adequate to state, contrary to most studies I have seen, that "after conducting this study we actually found that there indeed is a response (in some way) in the nervous system from the input used in the study, hence the input used does not qualify as a subliminal stimulus". Or that "we found that there was no effect, hence the stimulus can be considered as subliminal."

The point is that a stimulus that generates a response should not be termed subliminal, at least not by professional researchers.

It is my sincere suspicion that some researchers use the word "Sublimnal" for PR reasons in order to get more media attention for their research. Insert the word subliminal and you will automatically get less informed journalists to write about your research with the Coke & Popcorn angle as a foundation. There is of course also the group of researchers, coming from other areas than marketing/advertising, that are unaware of that the original "subliminal advertising" of Coke & Popcorn was a hoax.

//Patrik Nilsson
Stockholm Institute of Communication Science - Stics
www.stics.se

Dr Bahrami's research not "Subliminal advertising"

October 18, 2007 by Anonymous, 1 year 37 weeks ago
Comment id: 25557

The research referred to in the article above is unfortunately not an example of “Subliminal advertising”. If it was, there should at least be some reference to the duration of the exposures. That is, how long time was the subjects exposed to the communication in milliseconds? The only thing that is stated is that the subjects were exposed to “faint pictures” and that they also had to perform either an easy task or a more difficult task. It is not stated anywhere how the researchers came to the conclusion that these “inventions” fits into “Subliminal advertising”.

In the “original” fairy tale experiment from the fifties, which was a fraud, the story tells that the subjects watched a movie in a theater and were exposed to a message which lasted for 40 milliseconds. In what way has the UCL research tried to replicate this fact? Furthermore, it is highly questionable how “faint pictures” of an iron would affect higher order brain processing such as decision making which in turn would lead to the purchase of an iron? In the “original” case there were no tasks but a nice movie and it was Crystal Clear (and not faint) text messages that explicitly told what the subjects should do, i.e. “Drink Coke and buy popcorn”. What should a person do who sees an iron? Start ironing shirts? However, this does not hinder the researcher from speculating that the consumers’ decisions would be manipulated if it was a real situation.

Jim Vicary’s grand hoax is still, 50 years after its unfortunate birth, intriguing the public as well as some researchers.

Dr Patrik Nilsson
Stockholm Institute of Communication Science - Stics

The Hoax - 50 Years of Subliminal Advertising

October 18, 2007 by Anonymous, 1 year 37 weeks ago
Comment id: 25555

There are few stories in the area of marketing that have come to be as widespread and well known as the "Coca Cola - Subliminal Advertising" story. Here you can read a brief summary of the story and the blatant lies behind it. The story goes like:

"This advertising specialist, Mr Vicary, comes up with a brilliant idea and inserts a brief advertising message into a movie but the message is so short that it will not be perceived consciously. The message "Drink Coke" and "Eat popcorn" constitutes a subliminal advertising message and is received by the audience at a sub-treshold level. In the pause, the sales of Coke and popcorn increased dramatically." End of Story.

This story is every now and then surfacing in media or among the general public, it can be heard from students, marketing researchers, advertisers and sadly enough, by many professors and professional researchers. What few know is that the "Jim Vicary Hoax" might as well be dubbed the No. 1 Myth in Marketing. It is by far the most well known phenomenon related to marketing that people in general knows about. And that they think is true. Nonetheless, the concept of "Subliminal advertising" is unsubstantiated. (See references below)

Jim Vicary whose advertising agency, at the time, was not doing very well came up with the "experiment" and claimed that he had succeeded in advertising Coke and popcorn in an ingenious way. However, later when he was challenged and could not replicate or even produce the results, Vicary admitted that the results of the initial study had been fabricated (Weir, 1984). Furthermore, later studies have never produced any scientific evidence of the phenomenon, on the contrary (Moore, 1982, Rogers & Seiler, 1994, Percy & Elliot, 2005).

Then, what is this so called "Subliminal advertising" all about? "Subliminal advertising" is defined as advertising that employs stimuli operating below the threshold of consciousness. It is supposed to influence the recipient's behaviour without him/her being aware of any communication taking place. However, fact is that since the message is communicated below the treshold then this is equivalent to no input at all. The human attention system is not constructed in such a way that it can receive and make sense out of messages that has such a short time span.

Those talking about the Subliminal effect are mixing things up! It is worth to notice that one should not, like many do, confuse the term subliminal with unawareness. Unawareness of the impact of an advertisment is something completely different than the "Subliminal"-concept. For instance, a person may read an article in a newspaper and next to the text is an advertisement for a product. Now, in this case the reader will be exposed to the advertisement perhaps even for minutes and the peripheral vision will capture parts of what is advertised as the eyes of the reader is being scanned back and forth over the text for a long period of time and also covering the ad at times. Clearly this does not have anything to do with the claimed "subliminal effect" but when studying the advocates of "Subliminal advertising" some are confusing Subliminal with unconscious. Another example frequently used is the small ice cube lady in a glass of whishy or any other drink. In this case some are arguing that it is "Subliminal advertising". A notion that is somewhat difficult to understand. In cases like this the small pinup girl wearing bikini in the glass is clearly visible if you take the time and look. So in what sense is that "Subliminal advertising"? And what do the advocates of "Subliminal advertising" expect to happen? That the customer runs and buys a bikini?

So why has "Subliminal advertising" gotten so much attention then? To understand that, things has to be put into context. There may actually be some answers.
a) The book "The hidden persuaders" by Vance Packard from the end of the fifties was successful in stirring up peoples feelings. In his book he is sketching how consumers are manipulated, with advertising, into a consumption prison to the benefit of the companies.
b) During this era, 50s - 60s, when the cold war was raging and senator McCarthy was at his peak some people and some organizations were very concerned about whether methods like "Subliminal advertising" and the like could be used for political propaganda as a hidden weapon.
c) During the 60s, 70s and up to the mid 80s the concept of hypnosis and subconscious effects were widely popular. Perhaps you may even remember TV-shows from this time where psychologists or "magicians" were hypnothising people live making them do funny things. "Subliminal advertising" fit very well into this time.
d) "Subliminal advertising" is interesting because it tickles our imagination! The very concept of "Subliminal advertising" challenges our free will. It is manipulating us and worst of all, it is obscured or hidden so we do not know if or even when we have been subjected to it... and that may perhaps be the number one reason why this marketing myth is still alive and continuous drawing attention to itself.

This year (2007) it is 50 years since Jim Vicary conducted his infamous "experiment". Today Vicary's story has unfortunately developed into folklore. But what is worse is that the general public as a consequence of this has a serious misperception of marketing and advertising. Obviously even Biologists are believing this hoax.

//Dr. Patrik Nilsson

© Copyright 2007: Stics. This article may not be re-produced (in full or part) in any format/media off-line or Internet based, without prior permission from Stockholm Institute of Communication Science.

Find more on this topic in the following references:

Sheri J. Broyles, (2006), "Subliminal Advertising and the Perpetual Popularity of Playing to People’s Paranoia." Journal of Consumer Affairs, Vol. 40 Issue 2, p392-406

Dichter, Ernst (2007), "It was rubbish then, it's rubbish now" Advertising Age; 9/10/2007, Vol. 78 Issue 36

Moore, Timothy E. (1982). Subliminal Advertising: What You See Is What You Get. Journal of Marketing. 38-47.

Rogers, Martha; Seiler, Christine A. (1994), "The answer is no: A national survey of advertising industry practitioners and their clients about whether they use subliminal advertising", Journal of Advertising Research, Mar/Apr, Vol. 34 Issue 2

Weir, Walter (1984), "Another Look at Subliminal 'Facts'.", Advertising Age.

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