mardi 5 décembre 2017

Can you hear the silent gif?

It's an internet craze. Watch the silent gif of the funny jump-roping towers. Do you hear the thud of the jumper? I do, and apparently lots of others do as well. The sound is created in your brain by your "visual ear". The gif is in this article...

Quote:

Originally Posted by BBC News
Remember the white and gold dress that some internet users were certain was actually blue and black? Well, this time the dilemma being discussed online is whether you can hear anything in a silent animation of skipping pylons.

Some people claim they can hear a thudding sound when the pylon hits the ground and the picture vibrates.

Many social media users have discussed the noisy-gif phenomenon, as on Imgur in 2011, for example, where it was titled an "optical illusion for the ears"...

It resurfaced again last weekend when Dr. Lisa DeBruine from the Institute of Neuroscience & Psychology at the University of Glasgow posted it on Twitter, asking her followers to describe whether they experienced any auditory sensations while watching it.

Dr. DeBruine received more then 245,000 responses from people claiming to hear a sound accompanying the animation, with 70 per cent of respondents saying they could hear a thudding sound.

Dr. DeBruine told the BBC: "I don't know why some people hear it very clearly, others only feel it, and others perceive nothing at all. Some deaf and hard of hearing people have reported all three perceptions, as have people with aphantasia," a lack of visual imagery.

"I thought some of the vision scientists I follow would be able to explain it right away, but it seems like there are several plausible explanations and no clear consensus."...


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via International Skeptics Forum http://ift.tt/2AUxr1w

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