Subliminal stimuli
Sensory stimuli below an individual's threshold for conscious perception / From Wikipedia, the free encyclopedia
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Subliminal stimuli (/sʌbˈlɪmɪnəl/; sub- literally "below" or "less than")[1] are any sensory stimuli below an individual's threshold for conscious perception, in contrast to supraliminal stimuli (above threshold).[2]
This article may be unbalanced toward certain viewpoints. (February 2024) |
In 1957, the American cinematographer James Vicary claimed to have increased the sales of Coca-Cola by inserting in his cinema's movies some frames with "Drink Coca-Cola!" written on it. Five years later, however, he admitted to having inflated his results somewhat by including certain data that were labeled scientifically unreliable.[3] However, Vicary's claim increased scientific interest in subliminal messages.
Indeed, subliminal stimulation is now accepted as a legitimate research field in the scientific literature. A 2012 review of functional magnetic resonance imaging (fMRI) studies showed that subliminal stimuli activate specific regions of the brain despite participants' unawareness,[4] a result corroborated in a meta-analysis from 2023[5] concerning subliminal stimulation in post-traumatic stress disorder (PTSD). Visual stimuli may be quickly flashed before an individual can process them, or flashed and then masked to interrupt processing. Audio stimuli may be played below audible volumes or masked by other stimuli.