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‘If your brain latches on to one of the high frequency auditory patterns, at around 3,000 hertz, that is going to push you more towards yanny. ‘The issue is that this speech does not quite fit into the auditory patterns you expect for these two words so your brain is trying to find a “best fit”. Valerie Hazan, professor of speech sciences at University College London, said: 'The sound online seems to have been made deliberately ambiguous and people are being primed to hear 'yanny' or 'laurel'. The phenomenon has echoes of the argument that arose in 2014 when people quarrelled over whether a dress posted on Twitter was gold and white or blue and black.Īcademics have provided a range of explanations for the auditory illusion. Whichever word you hear, the debate dominated offices and living rooms yesterday, with celebrities including Ellen DeGeneres and Stephen Fry weighing in. Stranger still, people who hear 'yanny' are more likely to hear a woman's voice, while those who hear 'laurel' will hear a man. Or it could depend where you heard the recording, as a bass-heavy car stereo can change which word you detect. If members of your family disagree, that may be because older people are more likely than younger ones to hear 'laurel'. To make the nature of the image even more elusive, the colors of the orbs tend to switch depending on which area of the image one focuses their eyes on.īy diverting your eyes and then returning them, a clearly 'blue' sphere might now appear green.Īccording to an analysis by science writer Phil Plait for SyFy Wire, the illusion, like all other optical illusions, underscores a disconnect between the raw data and the information - data put into context - processed by our brain.
'A three-color confetti illusion with spheres, which appear to be yellowish, reddish, and purpleish but in fact have exactly the same light-brown base color (RGB 255,188,144),' he writes in the tweet.Īs shown in an image of the spheres sitting in front of the colored lines instead of behind them, each of the circles - the same one sin the previous image - is actually a pale pink, despite what our eyes had initially reported to our brains. In the above image, there appears to be spheres of three different colors David Novick is a professor at University of Texas who highlighted an optical illusion that shows our brains struggling to make sense of raw data.