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Optical Illusion Gives Insight Into How We Perceive the World

Summary: Short cues can give our brains the context needed to distinguish between two identical images, researchers say.

Source: University of Alberta.

When you look at the two images below, what do you see? Maybe you see two ducks, sitting side by side. Perhaps instead you see two rabbits. Maybe you see a duck and a rabbit.

Now look at the image, and imagine a duck eating a rabbit. Can you see it now?

You’re not the only one who needs prompting to see both images side by side, according to research from University of Alberta neuroscientist Kyle Mathewson. About half of people can’t see both a duck and a rabbit at first glance. The flip takes place only when you ask them to imagine a duck eating a rabbit.

“Your brain sort of zooms out and can see the big picture when the images are put into context with one another,” said Mathewson, an assistant professor in the Department of Psychology.

Context is crucial

The study shows that a short cue—like “duck eats rabbit”—can give our brain the context it needs to distinguish between two identical images.

rabbit duck illusion

What do you see when you look at these images side by side—two ducks? Two rabbits? Or a duck and a rabbit? NeuroscienceNews.com image is adapted from the University of Alberta news release.

“This study also demonstrates that we can control the brain’s way of interpreting information with just a few words or with an image,” explained Mathewson. “We should all be mindful of that when, for example, we’re reading a news story. We’re often interpreting and understanding information the way we want to see it.”

The study also aimed to determine whether another, more simple phrase would work—namely, “Imagine a duck beside a rabbit.” But this phrase did not have the same effect, because it does not explain which image should be a duck and which should be a rabbit.

“What we discovered is that you have to come up with a way to disambiguate the scene, to allow the brain to distinguish between two alternatives,” said Mathewson.

About this neuroscience research article

Source: Katie Willis – University of Alberta
Publisher: Organized by NeuroscienceNews.com.
Image Source: NeuroscienceNews.com image is adapted from the University of Alberta news release.
Original Research: Open access research in Perception.
doi:10.17605/OSF.IO/3J624

Cite This NeuroscienceNews.com Article
University of Alberta “Optical Illusion Gives Insight Into How We Perceive the World.” NeuroscienceNews. NeuroscienceNews, 6 March 2018.
<http://neurosciencenews.com/optical-illusion-perception-8591/>.
University of Alberta (2018, March 6). Optical Illusion Gives Insight Into How We Perceive the World. NeuroscienceNews. Retrieved March 6, 2018 from http://neurosciencenews.com/optical-illusion-perception-8591/
University of Alberta “Optical Illusion Gives Insight Into How We Perceive the World.” http://neurosciencenews.com/optical-illusion-perception-8591/ (accessed March 6, 2018).

Abstract

Duck Eats Rabbit: Exactly which type of relational phrase can disambiguate the perception of identical side by side ambiguous figures?

Many individuals cannot at first see two ambiguous figures as different interpretations simultaneously, even with effort. Here in a large sample replication we find that the phrase “duck eats rabbit” allows those who could not see a duck and rabbit side by side to do so. In a second experiment we show that a relational phrase “next to” that does not disambiguate the spatial position interpretation, does not similarly allow the duck to be seen next to the rabbit, supporting the proposal that top-down semantic-framing can influence perception of ambiguous figures.

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