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Subliminal messages - do they really work? Featured science projectScience project video


This experiment was conducted to find out whether subliminal messages can be effectively used to influence the decisions that the person makes.


Persons exposed to  subliminal messages will more likely respond accordingly to the information contained in the messages.

Scientific Terms

Subliminal messaging, conscious, subconscious


Subliminal message

Subliminal messaging is the transmission of information that will normally be ignored by our conscious mind but is instead perceived by our subconscious mind. The message may be transmitted  in the form of audio, visual, video or text. It is thought that because the subliminal message goes directly to the subconscious mind without the conscious mind  analyzing it, it becomes more easily accepted.

It is also believed that the behavior of a person can be altered by the use of subliminal messaging. Advertisers on radio and television are believed to be using subliminal messaging to convey hidden messages to the public.

The effectiveness of subliminal messaging has never really been proven. There is also a ban in some countries against the use of subliminal messaging in advertising. However this ban does not typically cover the music and the film industries.

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Complexity level:
Project cost ($):
Time required:
2 hour to prepare, 6 days for observation
Material availability:
participants who have their own stereo sound systems with CD players, or iPods (or equivalent MP3 players) required. An MP3 recorder/player with sufficient memory storage or alternatively, you can use your home PC, with a microphone and soundcard.
Safety concerns: