Greetings Card : Poggendorff illusion
Cards from Science Photo Library
Poggendorff illusion
Poggendorff illusion. The two red lines crossing the blue bar are colinear. Many people see them as being offset. There are still no satisfactory explanations as to why this should be the case. One theory, borne out by experimental evidence and with a neurological basis, is that the brain has a conflict between the two edges - the edge of the rectangle and the line. Lateral inhibitors in the eye diminish both lines when they are viewed close together, causing the brain to consistently overestimate acute angles
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6440473
© SCIENCE PHOTO LIBRARY
Acute Ambiguous Angle Distortion Illusory Neuroscience Optical Illusion Panoramic Perception Psychology Trick Trickery Vision Vision Visual Visual Trick
Greetings Card (7"x5")
Discover the intriguing world of optical illusions with Media Storehouse's captivating range of greeting cards. This design features the iconic Poggendorff illusion from Science Photo Library. Defy logic with the two red lines that appear to cross the blue bar at different angles, despite being colinear. Delight your friends and family with this thought-provoking and visually stunning card, perfect for any occasion. Experience the power of perception and ignite curiosity with each unique design from our collection.
Folded Greeting Cards (12.5x17.5 cm) have a laminate finish and are supplied with an envelope. The front and inside can be personalised with text in a selection of fonts, layouts and colours.
Greetings Cards suitable for Birthdays, Weddings, Anniversaries, Graduations, Thank You and much more
Estimated Product Size is 12.5cm x 17.5cm (4.9" x 6.9")
These are individually made so all sizes are approximate
Artwork printed orientated as per the preview above, with landscape (horizontal) or portrait (vertical) orientation to match the source image.
EDITORS COMMENTS
This print showcases the intriguing Poggendorff illusion, a visual trick that challenges our perception of angles and lines. In this image, we see two red lines intersecting a blue bar, appearing to be offset despite being perfectly aligned. The mystery lies in why our brains consistently overestimate acute angles when confronted with this optical illusion. Scientists have proposed various theories to explain this phenomenon, but none have provided a fully satisfactory explanation yet. One prevailing idea suggests that there is a conflict between the edges of the rectangle and the line within our brain. When viewed closely together, lateral inhibitors in our eyes diminish both lines, leading to an exaggerated estimation of acute angles. The Poggendorff illusion exemplifies how easily our vision can be deceived by ambiguous stimuli. It serves as a reminder that what we perceive may not always reflect reality accurately. This fascinating interplay between psychology and neuroscience highlights the complexity of human perception. As we delve into the world of optical illusions like this one, it becomes clear how intricate and enigmatic our visual system truly is. Through scientific exploration and continued research in fields such as neuroscience, we hope to unravel more secrets behind these illusory tricks that challenge our understanding of vision itself.
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