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Q: Playing basketball and the gorrila ( Answered 5 out of 5 stars,   3 Comments )
Subject: Playing basketball and the gorrila
Category: Reference, Education and News
Asked by: shlomogloberson-ga
List Price: $2.00
Posted: 09 Mar 2005 23:00 PST
Expires: 09 Apr 2005 00:00 PDT
Question ID: 490946
I am looking for a video clip, which takes around two minutes, that I
want to download, that shows two teams, of around three persons each,
playing basketball, while during their game, a gorilla paases by.
Subject: Re: Playing basketball and the gorrila
Answered By: rainbow-ga on 09 Mar 2005 23:48 PST
Rated:5 out of 5 stars
Hi shlomogloberson,

The video clip you are seeking is a well-known test of perception.
Here are a few brief descriptions of this test:

"...In one study, perceivers are asked to watch a video tape of a
basketball game and they are asked to count the number of times one
team takes possession of the ball [Simons & Chabris, in press]. During
the film clip, which lasts a few minutes, a person in a gorilla suit
strolls onto the center of the court, turns and faces the audience and
does a little jig. The gorilla then slowly walks off the court. The
remarkable fact is that perceivers (including this author) do not
notice the gorilla. This is an example of what has been called
inattentional blindness..."

Perception, action,and nonconceptual content

"A demonstration of inattentional blindness goes something like this.
Viewers are asked to monitor three basketball players in white
T-shirts and count the number of times they pass the ball during a
video clip. Thirty-four seconds into this experiment, a person wearing
a gorilla suit walks through the game and even pauses to pound his
chest before moving on. Despite their vigilance, approximately half
the viewers never see the gorilla. Even after they are told about the
gorilla and shown the video, they refuse to believe it."

Aquatic Safety Research Group: A Matter of Perception

More on this test:

Charles Carver: A Gorilla In The Midst

The video can be viewed here by clicking on  ["View the "basketball" video].

*Note: "This video is  2004 by Daniel J. Simons. It is provided
solely so that individuals can view it. The video may not be
downloaded, saved, copied, reproduced, or used for any other purpose."

Search criteria:
"video clip" basketball gorilla
 basketball gorilla
"basketball video" gorilla

I hope the information provided is helpful.

Best regards,
shlomogloberson-ga rated this answer:5 out of 5 stars and gave an additional tip of: $1.00

Subject: Re: Playing basketball and the gorrila
From: rainbow-ga on 10 Mar 2005 04:10 PST
Thank you for the rating and tip.
Best wishes,
Subject: Re: Playing basketball and the gorrila
From: barnacle_bill-ga on 10 Mar 2005 04:57 PST
I seem to recall this video being shown in England in a series called 
"Derren Browns - Mind control" Feb 2003 Channel 4

Also you might want to check out "Did you spot the Gorilla" by Richard Wisemen

Subject: Re: Playing basketball and the gorrila
From: viscog-ga on 12 Mar 2005 05:06 PST
This video was created by Daniel Simons & Christopher Chabris.  It can
be viewed at

It is available as part of the "Surprising Studies of Visual
Awareness" DVD from us (Viscog Productions -- 
That is the only form in  which the video is distributed.

You can also get the journal article that described the study from

If it was shown as part of the Mind Control program, that would have
constituted a copyright violation.


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