The Dynamic Ebbinghaus

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  • Published on May 27, 2014
  • 1srt prize winner of the 2014 Best Illusion of The Year Contest
    illusionoftheyear.com/
    Christopher D. Blair, Gideon P. Caplovitz, and Ryan E.B. Mruczek
    University of Nevada Reno, USA, USA
    The Dynamic Ebbinghaus takes a classic, static size illusion and transforms it into a dynamic, moving display. A central circle, which stays the same size, appears to change size when it is surrounded by a set of circles that grow and shrink over time. Interestingly, this effect is relatively weak when looking directly at a stationary central circle. But if you look away from the central circle or move your eyes, or if the entire stimulus move across the screen, then the illusory effect is surprisingly strong -- at least twice as large as the classic, static Ebbinghaus illusion.

Comments • 79

  • Ayumi1358
    Ayumi1358 Year ago

    //read comment section
    Huh, okay? Uh...
    I was sent here by my lecturer.

  • BenderinO
    BenderinO 3 years ago +4

    I was sent here by a dude who killes Nazis, great.

  • Spoods The Mil- I mean, man.

    I was sent here by a guy who discovered nazi's were filled with jam.

  • Benghazi gaming
    Benghazi gaming 4 years ago +2

    I was sent here by a Nazi!
    What?

  • Lisa O'Connor
    Lisa O'Connor 4 years ago

    SOO COOOOL

  • SaggyGThaGOAT
    SaggyGThaGOAT 4 years ago +1

    i was sent here by official nerd cubed

  • SandyTag
    SandyTag 4 years ago +2

    I was sent here from Vsauce.
    And I'm only saying it because it seems to be a trend in these comments.

  • Adam Dobson
    Adam Dobson 4 years ago

    wtf

  • The Arctic Gamer
    The Arctic Gamer 5 years ago

    this mystery video ... sucks.

  • Lianne Barnes
    Lianne Barnes 5 years ago

    Awesome job, guys!

  • LearningBotNoob
    LearningBotNoob 5 years ago

    for the first one the one on the left appears larger...

  • harri millard
    harri millard 5 years ago

    I was sent here by a guy who yell and acts like comedy host while trying to make hes dad proud.

  • Eddy Grant
    Eddy Grant 5 years ago

    I was sent by an Inglorious Bastard.

  • lordcrekit
    lordcrekit 5 years ago

    I'm totally procrastinating by being here. What a co-incidence!

  • procrastinatornavino
    procrastinatornavino 5 years ago

    I was sent BY A GIBBON

  • barneyhero
    barneyhero 5 years ago +6

    I was sent by a dude who tastes bullets.

  • MyNameIsERROR
    MyNameIsERROR 5 years ago

    I was sent here by a monster with headshots

  • Ryan Stephenson
    Ryan Stephenson 5 years ago

    Hello percrastinators

  • Baza Boi
    Baza Boi 5 years ago +1

    Procrastinators unite

  • NorthWind Studios
    NorthWind Studios 5 years ago +2

    I was sent here by a man who hit the grenade.

  • ExplodingSoySauce
    ExplodingSoySauce 5 years ago

    I was sent here by a person

  • The Pyre Guardian
    The Pyre Guardian 5 years ago

    i was sent her by a man who use a smartie tube as a pistol

  • Dan Milne
    Dan Milne 5 years ago

    I don't get it.

  • Jinado
    Jinado 5 years ago +1

    I was sent here by a bastard... but a fun bastard

  • madhouse5213
    madhouse5213 5 years ago +1

    i was sent by a man who turns bluets to food but only in slow motion and deadly :D

  • Tom Moffitt
    Tom Moffitt 5 years ago +1

    i was sent here by a man that made a nazi twerk by sniping him in the ass

  • David Gonzalez
    David Gonzalez 5 years ago +11

    I was sent by a man-baby who's brain is no bigger than a gnat

    • MrBombastic799
      MrBombastic799 5 years ago +1

      @TheRagingGamer Yes, I do know Dan. I also do know Emma Blackery. Being a huge grammar nazi, however, always takes precedence.

    • TheRagingGamer
      TheRagingGamer 5 years ago +2

      @MrBombastic799 Actually, if you don't know he meant Nerd3 who did confess that he is a 'man-child' in the video 'Emma Meets Dan' (Emma-Emma Blackery). I'm not sure about his brain being no bigger than a gnat, sure sounds familiar though.

    • MrBombastic799
      MrBombastic799 5 years ago +7

      says the guy who can't spell whose.

  • QeboKiller Gaming
    QeboKiller Gaming 5 years ago +1

    I was sent by a guy who likes sniping and 'splodey bits.

  • Cullen Schmitt
    Cullen Schmitt 5 years ago +1

    I was sent here by a bastard who was actually good at something.

  • bropen5
    bropen5 5 years ago +26

    i was sent hear by the person that pretty much everybody else was sent hear form

  • dirtyflame
    dirtyflame 5 years ago

    -__- these fucking comments. We get it, NerdCubed sent you here.

    • TheRagingGamer
      TheRagingGamer 5 years ago

      I was sent by a bastard sniper that is just as bad as a video game bad guy, has the power to restart missions, is afraid of floating lamps, hates world war II games & shooters but loves a ww2 shooter and has a gun that is made out of a tube of smarties.

    • MrBombastic799
      MrBombastic799 5 years ago +1

      I was sent here by a man that that has an evil laugh.
      MUAHAHAHAHAHAHAHA

    • James Kuhn
      James Kuhn 5 years ago

      @Sir Jimmy Savile OBE Naw, PewDiePie is different and so are there fans. There just saying they got here from Nerdcubed.

    • dirtyflame
      dirtyflame 5 years ago

      @Nightrogen Labonitrix This shit will turn NerdCubed into the next PewDiePie. Embarrassing fans who shitpost everywhere.

    • James Kuhn
      James Kuhn 5 years ago

      I scroll down and the last 15 comments start with "I was...."

  • Sami Jabr
    Sami Jabr 5 years ago +2

    I was sent here by a man who actually discovered something he's good at.

  • simpsonsim07
    simpsonsim07 5 years ago +16

    Nerdcubeds a basterd.

  • R V
    R V 5 years ago +7

    PROCRASTINATORS ASSEMBLE!
    Ah fuck it, maybe tomorrow.

    • Kek Mitt Uns
      Kek Mitt Uns 5 years ago +1

      Well damn, that's where all the comments are coming from.
      I guess I can unite though.

  • landnanners2011
    landnanners2011 5 years ago

    Dynamic Ebbinghaus 2014

  • inspectergadget25
    inspectergadget25 5 years ago +46

    I was sent by a man who was actually good at something.

  • Natepot
    Natepot 5 years ago +1

    I was sent here by a man who gives swimming lessons.

  • xXTheGamingNinjaXx
    xXTheGamingNinjaXx 5 years ago +22

    I was sent here from a man who can make people double back flip from his snipes.

  • Chase Stansell
    Chase Stansell 5 years ago +1

    I was sent by an awesome sniper

  • RaenyVisualz
    RaenyVisualz 5 years ago +5

    i was sent here from the best sniper in da house

  • Milan Radomirovic
    Milan Radomirovic 5 years ago +49

    i was sent a dude who curves bullets

    • Jon Rice
      Jon Rice 5 years ago +2

      I was set here by a man with the foofyest hair ever

    • Gevo
      Gevo 5 years ago +1

      i think he also had a quote of this war cannot be won in a day is that right?

    • Milan Radomirovic
      Milan Radomirovic 5 years ago +4

      @Austin Nope A British dude who curves bullets with his sniper. To be precise... (precise-pun intended)

    • Austin Nope
      Austin Nope 5 years ago +4

      So Magneto?

  • TechShark
    TechShark 5 years ago +1

    I was sent here by a man who feeds bullets to people. Very forcefully.

  • P&P Animation Studios
    P&P Animation Studios 5 years ago +2

    I was sent an elite nerd sniper.

  • SeanG
    SeanG 5 years ago +11

    i was sent here from WW2 by a super duper trained sniper

  • TheOccasionals
    TheOccasionals 5 years ago +24

    I was sent here by a gravely voiced german wearing a hat on his floating sniper.

  • Disarmed Lawyer
    Disarmed Lawyer 5 years ago +1

    BOOM HEADSHOT

  • Disarmed Lawyer
    Disarmed Lawyer 5 years ago +2

    the man who thought himself a true sniper brought me here

  • CrazyLikeChris
    CrazyLikeChris 5 years ago +14

    TESTICLE SHOT!!!

  • Alex's video suggestions
    Alex's video suggestions 5 years ago +74

    Haha. Half the people here just watched the best double headshot, the other actually care about this surprisingly interesting video.

  • Liam Brooks
    Liam Brooks 5 years ago +71

    Boom Headshot!

  • The steamy cream of dual jabbar

    I was sent by a bastard

  • Marcus Magnusson
    Marcus Magnusson 5 years ago +57

    I was brought here by some dude in Afrika.

  • Chance Frederickson
    Chance Frederickson 5 years ago +12

    I came here from a man who shot Hitler's baby makers

  • TorHS
    TorHS 5 years ago +18

    I came here from an horrible man

  • Dynamic optical/visual illusions

    Very nice Ebbinghaus variation. Perfectly visualised. A winner.

  • G C
    G C 5 years ago


    Thank you for enjoying our illusion. You can read more about the underlying principal that we call: Dynamic Illusory Size Contrast by reading our recent Open Access Peer-Reviewed paper published in the Journal of Vision: www.journalofvision.org/content/14/3/2.long
    We have more empirical work in the pipeline that we look forward to sharing in the near future. In the meantime feel free to visit our lab website: wolfweb.unr.edu/~gcaplovitz