Headline: Test Your Eyes: Can You Decipher This Optical Illusion in Under 10 Seconds?

Optical illusions have become a popular way to challenge our brains and test our observation skills. These visual puzzles are not only entertaining but also provide a great mental workout. An optical illusion occurs when our brain misinterprets the information our eyes perceive, leading us to see things that aren't necessarily there or to perceive objects differently from reality.

In this particular illusion, you'll see the word "pens" repeated numerous times against a black background. However, hidden among the "pens" is a different word. The challenge is to find it within 10 seconds. Are you ready to put your visual skills to the test?

The Reveal

Did you give up? The hidden word is "pan." Due to the similarity in spelling, it’s easy to overlook. We've highlighted it for you in the image above. Were you able to spot it?

Types of Optical Illusions

There are three primary categories of optical illusions:

• Literal Illusions: These illusions occur when the brain pieces together elements of an image to create a perception that doesn't actually exist. A classic example is an image that can be interpreted as either two faces or a vase, depending on your focus.

• Physiological Illusions: These illusions result from overstimulation of the visual system. Excessive exposure to light, color, or movement can lead to effects like afterimages or the perception of motion in static images.

• Cognitive Illusions: These illusions rely on the brain's subconscious interpretation of information. The Müller-Lyer illusion, where lines appear to be different lengths due to the shapes surrounding them, is a prime example.