Ask A Scientist© Biology Archive

 
Question:  Is there any research on subliminal perception in the auditory system?  
Can preconsciously perceived information actually influence people?
XARA

Answer:  I don't know about the auditory system, but certainly there is evidence in 
the visual system.  Some of the work was done by having people view films in which 
1 or 2 frames out of the 30 each second contained different images.  People, when 
questioned, had no conscious perception of those images, but when tested responded 
differently than when they saw the same film without those interspersed images.  
-ProfBill