• Skip to main content
  • Skip to primary sidebar

Tracking Health and Wellness Applications of Brain Science

Spanish
sb-logo-with-brain
  • Resources
    • Monthly eNewsletter
    • Solving the Brain Fitness Puzzle
    • The SharpBrains Guide to Brain Fitness
    • How to evaluate brain training claims
    • Resources at a Glance
  • Brain Teasers
    • Top 25 Brain Teasers & Games for Teens and Adults
    • Brain Teasers for each Cognitive Ability
    • More Mind Teasers & Games for Adults of any Age
  • Virtual Summits
    • 2019 SharpBrains Virtual Summit
    • Speaker Roster
    • Brainnovations Pitch Contest
    • 2017 SharpBrains Virtual Summit
    • 2016 SharpBrains Virtual Summit
    • 2015 SharpBrains Virtual Summit
    • 2014 SharpBrains Virtual Summit
  • Report: Pervasive Neurotechnology
  • Report: Digital Brain Health
  • About
    • Mission & Team
    • Endorsements
    • Public Speaking
    • In the News
    • Contact Us

#16. Visual Perception Brain Teaser

October 19, 2006 by Caroline Latham

QUESTION: Is the inner shape a real circle?

visual circle brain teaser

Hint:
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.

ANSWER:
Believe it or not, both shapes are per­fect circles.

Next brain teas­er in Sharp­Brains’ top 25 series:

  • #17. Less obvi­ous than it may appear

Share this:

  • Tweet
  • Email
  • Print
  • More
  • Share on Tumblr
  • Pock­et

Filed Under: Brain Teasers, Brain/ Mental Health, Technology & Innovation Tagged With: Brain Teasers, Brain-anatomy-and-imaging, Brain-exercises, Brain-Fitness, Brain-games, Brain-Training, Cognitive Neuroscience, Executive-Functions, Mental-flexibility, Mind-Fitness, Mind-Games, Neuropsychology, Pattern-Recognition, Serious-Games

Reader Interactions

Comments

  1. Randy says

    December 17, 2006 at 12:00

    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

    December 18, 2006 at 2:20

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

  3. Mitch says

    January 4, 2008 at 4:32

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

  4. Mark says

    January 6, 2008 at 8:12

    Yes

  5. miss says

    January 11, 2008 at 10:53

    its a per­fect round circle

  6. yahobahne says

    January 21, 2008 at 6:54

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

  7. Alvaro says

    January 21, 2008 at 7:03

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

  8. yahobahne says

    January 21, 2008 at 7:20

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

  9. gothgirl818 says

    April 22, 2008 at 6:01

    wow that was well…interesting..

  10. Nevers says

    May 1, 2008 at 9:56

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

  11. Mukesh says

    June 5, 2008 at 4:20

    yes. inner shape is a circle

  12. bush will says

    July 28, 2008 at 1:10

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

  13. anthonette says

    August 5, 2008 at 9:04

    ya.… it looks like a circle

  14. catiana271 says

    August 15, 2008 at 4:24

    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.

  15. Eclipse1601 says

    May 2, 2009 at 8:52

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

Primary Sidebar

Top Articles on Brain Health and Neuroplasticity

  1. Can you grow your hippocampus? Yes. Here’s how, and why it matters
  2. How learning changes your brain
  3. To harness neuroplasticity, start with enthusiasm
  4. Three ways to protect your mental health during –and after– COVID-19
  5. Why you turn down the radio when you're lost
  6. Solving the Brain Fitness Puzzle Is the Key to Self-Empowered Aging
  7. Ten neu­rotech­nolo­gies about to trans­form brain enhance­ment & health
  8. Five reasons the future of brain enhancement is digital, pervasive and (hopefully) bright
  9. What Educators and Parents Should Know About Neuroplasticity and Dance
  10. The Ten Habits of Highly Effective Brains
  11. Six tips to build resilience and prevent brain-damaging stress
  12. Can brain training work? Yes, if it meets these 5 conditions
  13. What are cognitive abilities and how to boost them?
  14. Eight Tips To Remember What You Read
  15. Twenty Must-Know Facts to Harness Neuroplasticity and Improve Brain Health

Top 10 Brain Teasers and Illusions

  1. You think you know the colors? Try the Stroop Test
  2. Check out this brief attention experiment
  3. Test your stress level
  4. Guess: Are there more brain connections or leaves in the Amazon?
  5. Quick brain teasers to flex two key men­tal mus­cles
  6. Count the Fs in this sentence
  7. Can you iden­tify Apple’s logo?
  8. Ten classic optical illu­sions to trick your mind
  9. What do you see?
  10. Fun Mental Rotation challenge
  • Check our Top 25 Brain Teasers, Games and Illusions

Join 12,513 readers exploring, at no cost, the latest in neuroplasticity and brain health.

By subscribing you agree to receive our free, monthly eNewsletter. We don't rent or sell emails collected, and you may unsubscribe at any time.

IMPORTANT: Please check your inbox or spam folder in a couple minutes and confirm your subscription.

Get In Touch!

Contact Us

660 4th Street, Suite 205,
San Francisco, CA 94107 USA

About Us

SharpBrains is an independent market research firm tracking health and performance applications of brain science. We prepare general and tailored market reports, publish consumer guides, produce an annual global and virtual conference, and provide strategic advisory services.

© 2023 SharpBrains. All Rights Reserved - Privacy Policy