Visual Perception Videos
I noticed this colour changing card trick today that I feel would be useful for sessions demonstrating concepts related to visual perception.
There was another one floating around Youtube a few years ago (has been since removed) and I was surprised to learn that a lot of people hadn’t seen it. Follow the instructions carefully and then watch the video.
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1) The video lasts only about 20 seconds.
2) It is CRITICAL that you focus completely for the twenty seconds to get an accurate result.
3) The objective is to COUNT HOW MANY TIMES THE BALL IS PASSED BETWEEN THE PLAYERS IN WHITE SHIRTS.
4) This can be tricky since the players in black are only there to distract you.
6) Do NOT count the number of times the ball is passed between the players in black.
7) In other words, IGNORE the people in black shirts.
8) Do NOT read any comments on this post UNTIL you watch the video and post an answer. (Reading posts first may bias your results.)
9) Do NOT attempt to cheat by pausing frame by frame. Let the video play ALL the way through.
Now, watch the video on this page (it is the contained in the applet below the text).
To learn the answer, view this video.
Related posts:
January 19th, 2008 at 6:23 pm
14 times?
January 19th, 2008 at 6:38 pm
I counted 14 times too. Mind you, I also failed to see all of the other colour changes in the card trick video.
January 19th, 2008 at 6:39 pm
[...] Read the rest of this great post here [...]
January 19th, 2008 at 6:42 pm
I counted 15.
January 19th, 2008 at 6:48 pm
I counted 15 too.
January 19th, 2008 at 7:10 pm
[...] Open Thinking & Digital Pedagogy wrote an interesting post today on Visual Perception VideosHere’s a quick excerpt I noticed this colour changing card trick today that I feel would be useful for sessions demonstrating concepts related to visual perception. There was another one floating around Youtube a few years ago (has been since removed) and I was surprised to learn that a lot of people hadn’t seen it. Follow the instructions carefully and then watch the video. 1) The video lasts only about 20 seconds. 2) It is CRITICAL that you focus completely for the twenty seconds to get an accurate result. 3) T [...]
January 19th, 2008 at 7:12 pm
I counted 15.
January 19th, 2008 at 7:20 pm
Ok i still do not know how many–13? I will confess that i did not see “it” but i do recall feeling some distress at there suddenly seeming to be too much of the black and something not being right, but I wanted to be correct in my counting so i disregarded it–though it was a nagging feeling. LOL
January 19th, 2008 at 7:42 pm
[...] Open Thinking & Digital Pedagogy wrote an interesting post today on Visual Perception VideosHere’s a quick excerpt I noticed this colour changing card trick today that I feel would be useful for sessions demonstrating concepts related to visual perception. There was another one floating around Youtube a few years ago (has been since removed) and I was surprised to learn that a lot of people hadn’t seen it. Follow the instructions carefully and then watch the video. 1) The video lasts only about 20 seconds. 2) It is CRITICAL that you focus completely for the twenty seconds to get an accurate result. 3) T [...]
January 19th, 2008 at 8:29 pm
14 I think but I saw the gorilla the first time. Does teaching in a secondary school lab situation change anything?
January 19th, 2008 at 8:58 pm
[...] bookmarks tagged objective Visual Perception Videos saved by 1 others shimmeringflowergirl bookmarked on 01/19/08 | [...]
January 19th, 2008 at 10:28 pm
I say 16 passes – there is one quick pass that is barely visible near the end. And the gorilla was there every time I watched the video doing his King Kong impression.
Very intriguing how the mind perceives things though :)
January 20th, 2008 at 10:08 am
I counted 15
January 20th, 2008 at 10:55 am
I counted 15 and didn’t notice the gorilla until the very end.
January 21st, 2008 at 7:11 am
I saw 14 in the first video but 15 in the next one (the second video appeared to go a split second longer and include an extra pass. I also noticed the gorilla and commented to myself about how odd that was while I kept an eye on the ball being passed by the white shirts. One might say I did pretty well but…
The card video threw me off. I didn’t notice a single one of the 4 colour changes.
January 21st, 2008 at 7:15 am
p.s. I did notice the rather restrictive copyright notice on the video. :) Guess I won’t be showing it to any classes of mine.
January 22nd, 2008 at 6:39 pm
I counted 16 and of course I missed the gorilla guy too! Cool video!
January 25th, 2008 at 12:56 pm
[...] Found via Open Thinking & Digital Pedagogy. [...]
November 21st, 2008 at 12:15 pm
So what? There are countless non-uniform or unususl things you could glean from that video. Someone has scrawled letters on the wall, only one black shirter has black pants, 4 of the six people have white shoes, 2 of six have black shoes… I think what is most interesting about this is how easily people are “fascinated by the mysteries of the human brain” Ooooo, ahhhhh. If the object going into it is to count the number of passes who the f cares what else happens? Now, if you say count the passes and also, keep track of how many unusual or non-uniform things happen as well and people still miss it, that might be noteworthy. Otherwise, stop wasting time and get back to work.
February 26th, 2009 at 2:35 pm
14 times… this is beyond easy
April 6th, 2009 at 6:35 am
15 times
November 12th, 2009 at 12:06 pm
Twitter Comment
RT @Bonnycastle: Keep seeing this at conferences RT @courosa: Jukes is showing this video – [link to post]
– Posted using Chat Catcher
November 12th, 2009 at 12:33 pm
Twitter Comment
Keep seeing this at conferences RT @courosa: Jukes is showing this video – [link to post]
– Posted using Chat Catcher