In theory, subliminal messages deliver an idea that the conscious mind doesn't detect. The brain may ignore the information because it is delivered quickly. For example, the word "RATS" flickered briefly across the screen during an attack ad that the George W. ... When subliminal influences do occur, they don't last long.

What effect do subliminal messages have?

Subliminal messages have distinct impacts on people's thoughts and behavior. Subliminal messages can change a person's current mood, boost their motivation, and can even alter their political attitudes. It is well known that subliminal information could influence people's decision making, like who they vote for.

What would make a message subliminal?

A subliminal message is a signal or message designed to pass below (sub) the normal limits of perception. For example it might be inaudible to the conscious mind (but audible to the unconscious or deeper mind) or might be an image transmitted briefly and unperceived consciously and yet perceived unconsciously.