Can You Trick Your Mind With Eye Illusions?

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| By Nana Akosua
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Nana Akosua
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Quizzes Created: 19 | Total Attempts: 17,629
Questions: 10 | Attempts: 105

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Can You Trick Your Mind With Eye Illusions? - Quiz

Curious minds have always wondered why our eyes are easily fooled by illusions and as such making our mind make assumptions about the world; sometimes wrongly. Join us and let us find out what you know with this quiz.


Questions and Answers
  • 1. 

    Which illusion revealed our minds makes judgement about sizes using adjacent objects? 

    • A.

      Hering

    • B.

      Ebbinghaus

    • C.

      Aristotle

    • D.

      Optical Arts

    Correct Answer
    B. Ebbinghaus
    Explanation
    Ebbinghaus illusion is an optical illusion where the perceived size of a central circle is influenced by the size of surrounding circles. Our minds make judgments about sizes using adjacent objects, and in the Ebbinghaus illusion, the central circle appears larger when surrounded by smaller circles and smaller when surrounded by larger circles. This illusion reveals how our perception of size is influenced by the context in which an object is presented.

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  • 2. 

    What can the brain be tricked into thinking the Necker Cube is?

    • A.

      2D object

    • B.

      4 lines

    • C.

      3D object

    • D.

      A square

    Correct Answer
    C. 3D object
    Explanation
    The brain can be tricked into thinking that the Necker Cube is a 3D object. This is because the Necker Cube is a two-dimensional drawing that can be perceived as a three-dimensional object due to its ambiguous nature. The brain tries to make sense of the conflicting visual cues and can interpret the cube as a three-dimensional shape, even though it is actually a flat image.

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  • 3. 

    Who said that 'our senses can be trusted but they can be easily fooled'?

    • A.

      Sir Francis Bacon

    • B.

      Socrates

    • C.

      Plato

    • D.

      Aristotle

    Correct Answer
    D. Aristotle
    Explanation
    Aristotle believed that our senses can be trusted, as they provide us with information about the world around us. However, he also recognized that our senses can be easily fooled, leading to false perceptions and misunderstandings. This is because our senses can be influenced by various factors such as illusions, biases, and limitations. Therefore, Aristotle's statement highlights the importance of critical thinking and careful examination of sensory information to avoid being deceived by false perceptions.

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  • 4. 

    What does the Ponzo illusion illustrate context is fundamental for?

    • A.

      Shapes

    • B.

      Depth perception

    • C.

      Object sizes

    • D.

      Lines

    Correct Answer
    B. Depth perception
    Explanation
    The Ponzo illusion is a visual phenomenon that demonstrates how our perception of depth is influenced by surrounding context. In this illusion, two converging lines are drawn over two identical horizontal lines, creating the illusion that the top line is longer than the bottom line. This occurs because our brain interprets the converging lines as indicating distance and assumes that the top line is farther away, leading us to perceive it as larger. Therefore, the Ponzo illusion illustrates that context is fundamental for our perception of depth.

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  • 5. 

    Who is known as the father of Optical Arts?

    • A.

      Samuel Marinez-Conde

    • B.

      Victor Vasarely

    • C.

      Shinsuke Shimojo

    • D.

      David Hubel

    Correct Answer
    B. Victor Vasarely
    Explanation
    Victor Vasarely is known as the father of Optical Arts because he was a Hungarian-French artist who pioneered the Op Art movement in the 1960s. He created artworks that played with optical illusions, geometric patterns, and vibrant colors, creating a sense of movement and depth. Vasarely's innovative approach to art and his exploration of visual perception greatly influenced the development of Optical Arts, making him a key figure in this artistic field.

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  • 6. 

    What is used in the Muller-Lyer illusion?

    • A.

      3D objects

    • B.

      Circles

    • C.

      Squares

    • D.

      Lines

    Correct Answer
    D. Lines
    Explanation
    The Muller-Lyer illusion is a visual phenomenon where two lines of equal length appear to be different due to the addition of arrow-like fins or wings at the ends of the lines. These fins create an optical illusion that causes one line to appear longer than the other. Therefore, lines are used in the Muller-Lyer illusion to create the perception of unequal lengths.

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  • 7. 

    Who discovered that horizontal lines looks longer and slimmer than vertical lines?

    • A.

      Torstein Wiesel

    • B.

      Nicolas Wade

    • C.

      Hermann von Helmholtz

    • D.

      David Hubel

    Correct Answer
    A. Torstein Wiesel
  • 8. 

    How does the 'nested square illusion' suggest the brain identifies squares using?

    • A.

      Centerpoint

    • B.

      Angles

    • C.

      Corners

    • D.

      Lines

    Correct Answer
    C. Corners
    Explanation
    The 'nested square illusion' suggests that the brain identifies squares using corners. In this illusion, multiple squares are nested within each other, and the brain perceives the corners of the squares as the defining feature that distinguishes them as squares. This is because corners are a characteristic element of square shapes, and the brain relies on this visual cue to identify squares.

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  • 9. 

    What can you see other than a parrot?

    • A.

      A beak

    • B.

      A woman

    • C.

      Tree Stamp

    • D.

      A child

    Correct Answer
    B. A woman
    Explanation
    The correct answer is "A woman" because the question asks what can be seen other than a parrot, and out of the given options, a woman is the only one that is not related to a parrot. The other options, such as a beak, tree stamp, and a child, could all be associated with a parrot in some way.

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  • 10. 

    What happens to your eyes when you focus hard on your nose? 

    • A.

      They get tired

    • B.

      They droop

    • C.

      They become crossed

    • D.

      They water

    Correct Answer
    C. They become crossed
    Explanation
    When you focus hard on your nose, your eyes have to converge or turn inward to bring the nose into focus. This causes the eyes to become crossed, as they are not aligned parallel to each other anymore. This crossed position can strain the eye muscles and lead to discomfort or fatigue.

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