Subliminal advertising is an advertising that tries to insert the information into the viewers' brain without them realizing it. It tries to get into the subconscious of the viewers by inserting visual cue which can be a symbol, a word, a phrase, or the combination of any of them.
The advertising is based on a theory that the human brain is capable to process information unconsciously. The result of the successful subliminal advertising is supposed to be some type of a modified behavior in the targeted viewers.
Big companies usually are the accused ones for using this kind of advertising in their advertisements in delivering the message to their customers. This is the reason why their business have become very big and successful. Their advertisements supposedly modify the behavior of their target market into consuming their products only.
Theories and practices
There is a debate, however, on the fact whether the advertisements really work effectively. It is agreed among researchers that the brain does have a subconscious level, but various studies on the matter cannot find affected behavioral patterns as the result of subliminal advertisements.
What is more likely to be the result is a "Palvovian" effect occurred to people's attitudes after they saw subliminal advertisements. The studies show that people do develop the sense of hunger after seeing an image that related to a certain food, yet they do not feel necessary to want that particular food product.
In other words, subliminal advertising only manages to get people to want that kind of product but not certain product from certain corporation which creates the advertisement.
Some people may say that we are not really aware of what is going on, that we, as a society do not realize, what the effect of subliminal advertising in our daily life. Some will even argue that there are government institutions and companies that have been using subliminal advertising for years. We have to admit also that subliminal advertising does have scientific support in the theory even though the studies conducted could not find the evidence of the effectiveness.
Whatever the argument is, it is for sure that business owners will continue to promote their products and find the new ways to do it apart from the controversy whether it is truly effective or not. Subliminal advertising, in the end, will still be a controversy as long as it is only supported by theories and its effectiveness still cannot be proved by the studies that will be conducted in the future.