Muller-Lyer illusion
Wall Art and Photo Gifts from Science Photo Library
Muller-Lyer illusion
Muller-Lyer illusion. The two lines with arrows at each end appear to be different lengths on the left. In fact they are the same length. There are many explanations for this, but it is thought likely that it exploits our brains perception of perspective. Viewing the lines as existing in 3 dimensions and assuming that the arrows are emerging perpendicularly to the lines, we get the impression that the line on the right hand side is closer than the one on the left. As the line at the left is perceived to be further away, it is assumed by the brain to be longer
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6441227
© SCIENCE PHOTO LIBRARY
Ambiguity Ambiguous Arrow Depth Length Lines Neuroscience Optical Illusion Panoramic Perception Psychology Trick Trickery Vision Vision Visual Visual Trick
EDITORS COMMENTS
This print from Science Photo Library showcases the intriguing Muller-Lyer illusion, a visual trick that challenges our perception of length and depth. At first glance, the two lines adorned with arrows at each end appear to be different lengths. However, in reality, they are exactly the same length. This optical illusion has puzzled scientists for years, but it is believed to exploit our brain's interpretation of perspective. When we view these lines as existing in three dimensions and assume that the arrows emerge perpendicularly from them, an interesting phenomenon occurs. Our brains perceive the line on the right-hand side as closer than its counterpart on the left. Consequently, we fall into the trap of assuming that objects further away should appear longer. The Muller-Lyer illusion plays with our vision and psychology by introducing ambiguity into what seems like a straightforward task: judging line lengths. It highlights how easily our perceptions can be deceived by simple visual tricks. This mesmerizing image invites us to delve into neuroscience and explore how our brains interpret visual information. As we marvel at this optical illusion's ability to manipulate our perception of depth and length, it reminds us of both the complexity and vulnerability of human vision in deciphering reality accurately.
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