Subliminal messaging is most effective when the message being conveyed is negative, according to new research funded by the Wellcome Trust.
Subliminal images – in other words, images shown so briefly that the viewer does not consciously 'see' them – have long been the subject of controversy, particularly in the area of advertising. Previous studies have already hinted that people can unconsciously pick up on subliminal information intended to provoke an emotional response, but limitations in the design of the studies have meant that the conclusions were ambiguous.