Sharp Brains: Brain Fitness and Cognitive Health News

Neuroplasticity, Brain Fitness and Cognitive Health News


#2. Classic attention experiment (1-minute video)

Let’s try this fun exper­i­ment, con­ceived by Simons and Chabris for their clas­sic study on sus­tained inat­ten­tion­al blind­ness.

–>You will watch a brief video clip, and your chal­lenge is to count how many times that the play­ers wear­ing white pass the bas­ket­ball. 



Next brain teas­er in Sharp­Brains’ top 25 series:

Leave a Reply...

Loading Facebook Comments ...

125 Responses

  1. James says:

    I count­ed 27, plus 1 goril­la.

  2. Susie says:

    The first time I watched I count­ed 30 passes,saw the goril­la & the S’s, but didn’t notice the white/white and black/black pass­ing com­bi­na­tions. I’m think­ing that it’s because I’ve been an ele­men­tary teacher for 20 years. For exam­ple, I’ve had to train myself to watch all of my chil­dren on the play­ground at the same time, though they may be doing dif­fer­ent activ­i­ties. I have to con­duct a small read­ing group, while mon­i­tor­ing the com­put­er sta­tion, the inde­pen­dent work­ers, etc. to make sure that every­one is on task while inter­act­ing with the read­ing group as well as tak­ing men­tal notes to write down infor­mal assess­ment grades for each child in the read­ing group between that group and the next.

  3. Susie says:

    I watched it a sec­ond time, focus­ing on the white shirts pass­ing to white shirts and got 15. The third time I focused on black shirts pass­ing to black shirts and count­ed 20, though I wasn’t quite sure because it looked as though the ball had been passed off out of view a cou­ple of times. The sec­ond and third time I did notice the goril­la, but I didn’t notice the S’s, even though I had noticed them the first time I watched.

  4. kayare says:

    i count­ed 28 but the goril­la got in the way then i lost count.. so how many pass­es are there??

  5. nick says:

    I only count­ed 29 and I saw the mon­key the first the only rea­son I watched it twice more is because some ppl were say­ing 30 + times I count­ed 29 three times

  6. nick says:

    My bad 33 pass­es and the mon­key and blacks pass 2 black and white pass to white.……and they pass in a sequence they only pass to the same per­son each time

  7. Hameed says:

    I see 14 times ball changed hands between white dress group and 18 times among black dress group…

  8. LaLaLa2012 says:

    I didn’t see the goril­la you guys are talk­ing about. Or the fly­ing pig…

  9. ardit says:

    32 I didn’t see any goril­la.

  10. Kimmie says:

    I seen two teams of three, two balls and one goril­la. Between the two teams I count­ed 33 pass­es.

  11. benedict says:

    the visu­al noise was very dis­tract­ing, its futile to count the pass­es… no I did not see the goril­la the first time…

  12. chris says:

    well, i count­ed 29 then 24 and saw the goril­la both times.

  13. Muddy says:

    Saw a black thing in the video but was busy in count­ing passes..thay come out to be 28

  14. Tammy says:

    i count­ed 29

  15. hailrasec says:


  16. i dunno says:

    This is pret­ty inter­est­ing. I did see the goril­la, and count­ed only 27 pass­es. There were a few ‘fake” pass­es. Does any­body know the cor­rect #? The study on the stranger ask­ing direc­tions, and chang­ing as the door passed is very inter­est­ing. Great web­site. Glad to find it!

  17. kirsti says:

    haha seri­ous­ly didn’t see the goril­la until i read some­one had seem him. i was only focused on the balls. count­ed 29–30 i think.

  18. Denis says:

    haha i count­ed 29 times, i saw the goril­la but did not process the idea that he walked in

  19. terry woodruff says:

    i count­ed 31 pass­es , there may have been more but the dam goril­la got in the way.

  20. Seanathan McAndrew says:

    Saw this in class last week. It total­ly got me.

  21. johnny says:

    I count­ed 34, 1 goril­la, and noticed that the white shirt team and black shirt team don’t pass each oth­er the bas­ket­ball but rather they keep one ball between the white shirts and one between the black shirts.

  22. Larry says:

    I watched it twice, but I count­ed 34 pass­es.

  23. Crystal says:

    I count­ed 30 times, and noticed some­one go through the group, but DID NOT notice it was a goril­la. After read­ing the posts and going back to watch it, I was amazed at how it stopped to pound it’s chest and slow­ly and delib­er­ate­ly it was mov­ing. I didn’t notice but a mov­ing shape!

Leave a Reply

Categories: Attention and ADD/ADHD, Brain Teasers, Cognitive Neuroscience, Education & Lifelong Learning, Health & Wellness, Professional Development

Tags: , , , , , , , , , , , ,

All Slidedecks & Recordings Available — click image below

Search for anything brain-related in our article archives

About SharpBrains

As seen in The New York Times, The Wall Street Journal, BBC News, CNN, Reuters, and more, SharpBrains is an independent market research firm and think tank tracking health and performance applications of brain science.