Are the red lines straight or curved?

Visual optical illusion test: An optical illusion is a mind-bending illustration of an object, design, or image that looks different when viewed from different angles. There are many types of optical illusions like physical, physiological and cognitive illusions. These optical illusions are also part of the field of psychoanalysis because they illuminate the way you perceive things. A normal human brain can look at things or images differently, forming a different perception from every angle. Such a clever illustration is the optical illusion with blurry lines – blue and red.

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Visual optical illusion: are the red lines straight or curved?

Which Color You See First In This Optical Illusion Tells What Kind Of Genius You Are

The image above was created under the name Herringbone Illusion, Worth & Packard, 1999. This optical illusion is an example of both blurred lines and a delay in perception. The blurry lines of the optical illusion left netizens intrigued. It’s a visual optical illusion because when something in our periphery moves across our retina, we don’t get a dot, but a fuzzy line. This fuzzy line tells our brain that something is moving and lets us know which direction we are going.

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Herring illusion – Red lines are straight

The herring illusion explains that although the red lines are actually straight and parallel, the way the lines move towards the center tricks your mind into thinking they are slanted because the brain is predicting what will happen in the next 1/10e of a second. The seemingly curved red lines are straight and parallel to each other. The background suggests otherwise.

How many circles can you spot in this optical illusion?


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It is a complicated optical illusion as it covers both aspects – shape changing and color changing. Usually, our brain has a hard time filtering out the different colors that seem close to the spectrum.

Can you spot an old woman or young girl hidden in this century-old optical illusion?

Optical illusions always provide fascinating insight into how our brains work. Specific combinations of colors, light, and patterns can trick our brain into visually perceiving something that doesn’t exist. So tell us, did you spot any straight or curved red lines in this optical illusion?

What you see first reveals whether you’re left-brained or right-brained

Briana R. Cross