Hey Marc
Interesting stuff. I read up on subliminals a couple of years ago, and if not directly, the results of this research are used in everything from adverts, films etc., music, graphics and ... product placement in yout local shops! Oh yeah, then there's product packaging, colour use and combination...
We are manipulated at every opportunity.
Most subliminals seem to follow a basic formula:
Appetite/Desire + Product = Satisfaction
although there are variations involving assosciation with desirable attributes, they are only variations.
A common one as an example involves placing a skull image in an ice cube, in a alcohol drinks advert. The assosciation is, funnily enough, danger. There are other subliminals in the same advert (about 40). Why? Being viewed as mildly dangerous is a desirable self-image common for drinkers.
Assosciation is the key stone of subliminals. Assosciation is usually made with strong emotive subjects, like food and eating, or even stronger reactions using sexual imagery.
For example:
Product - Soft Drink. (much simplified)
Hidden messages:
Thirst equated with hunger equated with sexual desire and frustration. Images of heat, dry, arid, undesirable elements from stuck in traffic on a hot day etc. Hidden images include excessive heat (deserts, etc.), flacid unaroused sexual organs, frustrated facial images etc.
Product equated with popular food type, and sexual arousal. Images include drink being poured, face showing anticipation. Hidden images include aroused sexual organs, watering mouth, dilated pupils etc.
Drinking the product equated with satisfying your hunger and sexual acts especially penetration. Images of happy faces, and sexual acts are used.
Swallowing the product is equated with orgasm. Graphic images of orgasm are used.
After drinking the product satisfaction with the product is equated with sated appetite and sexual satisfaction. Images of post coital relaxation are used.
Images are displayed by a mixture of inserted whole frames, say a couple of frames every hundred, to percentage mixes between the consciously visible signal, say 95%, and the unconsciously visible subliminal, say 5%. The latter can very easily be done with audio.
Ok, so the supermarket/mall version is much diluted, but many of the equations are the same.
Cheers
John