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#16. Visual Perception Brain Teaser

QUESTION: Is the inner shape a real circle?

visual circle brain teaser

Sometimes extraneous information around your target can distort your view. Try covering the lines with a piece of card to remove some of the interfering information.

Brain functions involved:
Here you are exercising your visual perception and decision-making skills. The visual cortex in your occipital lobes processes visual input from your eyes. Not only is the occipital lobe mainly responsible for visual reception, it also contains association areas that help in the visual recognition of shapes and colors. The problem solving, selective attention, and executive functions used in this exercise are handled by the anterior portion of the frontal lobes.

Believe it or not, both shapes are perfect circles.

Next brain teaser in SharpBrains’ top 25 series:

  • #17. Less obvious than it may appear

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18 Responses

  1. Randy says:

    Ok! I finally got one. I could see the circle within the circle. Then I tried to complicate it by looking for a mathmatical solution.

  2. Caroline says:

    Glad you got it Randy! I think the moral of that story is simplify! 🙂

  3. Mitch says:

    I could see past the lines and see the circle as it would appear on its own – a perfect circle.

  4. miss says:

    its a perfect round circle

  5. yahobahne says:

    I see two circles although portions of the rounded lines are broken. I don’t get it.

  6. Alvaro says:

    That’s good: they are 2 full circles. The interior one may look like an oval given its positioning-this is a visual illusion.

  7. yahobahne says:

    Well Alvaro, my visual illusion only allows me to see the circles. I tried to look for the oval, but couldnt find it. Thxs

  8. gothgirl818 says:

    wow that was well…interesting..

  9. Nevers says:

    if you look at the center of the outer circle then you can see that the inner circle is not perfect. peripherals everybody.

  10. Mukesh says:

    yes. inner shape is a circle

  11. bush will says:

    In my perception it is not looking like correctly circle, but like circle.

  12. anthonette says:

    ya…. it looks like a circle

  13. catiana271 says:

    I thought it was a perfect circle. When I first looked at it, I thought it wasn’t. When they asked me to see if it was, I looked closer and saw that it was.

  14. Eclipse1601 says:

    yes; it just appears to not be one b/c of the angle.

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