The first step in what they call "the Rabbit Illusion" is to stare at the cross at the top of the screen. While doing that, you'll hear a few ticking sounds and see a few flashes. But the question is, how many flashes do you see?
Give it a try:
While most people see three flashes when the sound is playing, there are actually only two. The trick is in the sound. Since there were three ticking sounds, your mind creates a third flash to match, which is called an "illusory flash."
Here's what you're probably seeing:
But here's what's actually happening:
Caltech says this is proof that our senses can influence each other.
With this illusion, researchers believed they demonstrated how sound can influence our vision. They call it postdiction, which means "a stimulus that occurs later can retroactively affect our perceptions of an earlier event."
In this case, the stimulus was the ticking sounds.
Visit INSIDER's homepage for more.
Receive a single WhatsApp every morning with all our latest news: click here.
Also from Business Insider South Africa:
- PICS: 2 great white sharks ate a dead whale in front of a boat full of tourists
- South Africans probably won’t be hit by big tax hikes next year, PricewaterhouseCoopers says
- The cost of paranoia about SA: Businesses have wasted trillions on overseas flops
- These are SA's most popular TV adverts - including a disputed KFC ad
- 'Protect me from yourself' - SARS IT head's bizarre TV interview goes viral
- How to wipe your personal information from Facebook, Google, and Twitter
- Uber versus Taxify — we compare their fares in Joburg, Cape Town and Durban