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Subliminal Persuasion
SUBLIMINAL MESSAGES
Key and book Subliminal Seduction is most responsible for studying subliminals
Subliminals = SUB LIMEN or below the threshold of consciousness
Sub= Any devices used to convey or attempt to convey a message by means of images or sounds of a very brief or hidden nature that cannot be perceived at a normal level of awareness.
Embeds: Embedded under music or sounds or visuals
 2 kids killed themselves after Judas Priests song had "do it" subliminally on it.
 2 kid killed themselves after Ozzy Osbourn Blizzard of Oz subliminals
 Self improvement audio tapes "stop smoking" self-improvement"
 Student did science fair project where answers to a test were embedded under song jump. Students who heard song with embeds did better on test than group who heard song alone. Students who had subliminals later complained of headaches.
Backmasking
Moors said that there is no evidence that people are effected consciously or unconsciously. If people were told what they were supposed to hear--they heard it. If they were not prompted, they did not hear the message.
Visual Embeds
 Key embedded the word "sex " in a picture. No one in the class could detect.
 Reed (1985) tested a vacation scene with the word "sex" and one with nonsense syllables. The word not detected and students had no better recall of one photo over the other.
 Early movies had "Drink Coke" and "eat Popcorn" embedded, the inventor said it worked but the experiments never used a control group.
 Hawkins (1970) put the word "Coke" on one video and "Ford" on another. Those who saw the coke-video had more thirst afterwards. "A simple subliminal stimulus can arouse stimulus can serve to arouse a basic drive such as thirst." (Hawkins 1970). Researchers have not been able to replicate.
 Subjects flashed octagons prefers octagons later.
No evidence that persuasion lasts more than a few minutes.
Moore says that subliminals don't work because
1. Subliminal stimuli too weak to be observed and even if
it is observed it will be overwhelmed by stronger stimuli.
2. People can control their own responses and resist.
Greenwald did experiment where he tested self-help tapes and found that
1. Tapes only worked if you told people what was
supposed to happen.
2. When tapes switched they got results based on what
they thought they had not what they had.
Pratkanis and Greenwald said that researchers fail to produce subliminal effects.
1. Inconsistent use of definition of subliminal
What is perception w/out awareness?
How do you make something not consciously
aware but reachable to the unconscious?
2. Lack of standardized method
3. Lack of adequate conception of the unconscious
process.
5 Human tendencies that cause us to believe subliminals.
1. We tend to attribute unfavorable outcomes to external causes.
Purchases beyond our control
Can't help but buy unhealthful products--cigarettes & liquor
2. Propensity for false beliefs to preserver.
3. The everyday experience of responding with feelings of agree/disagree to incomprehensible or unintelligible messages.
4. The common experience of having beliefs and the like for which we cannot recall the source.
5. The fallacy that presence implies effectiveness. If something exists it must have an effect.
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