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Canine vision: Why dogs don't watch TV



 
 
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  #1  
Old September 30th 13, 11:15 AM posted to rec.pets.dogs.behavior
Opinicus[_2_]
external usenet poster
 
Posts: 52
Default Canine vision: Why dogs don't watch TV

From last week's *The Economist*:

"For people, the average CFF (critical flicker-fusion frequency: the
lowest frequency at which a flickering light appears to be a constant
source of illumination) is 60 hertz (ie, 60 times a second). This is
why the refresh-rate on a television screen is usually set at that
value. Dogs have a CFF of 80Hz, which is probably why they do not seem
to like watching television. To a dog a TV programme looks like a
series of rapidly changing stills."

http://preview.tinyurl.com/lb86qjt

See also:
http://onpoint.wbur.org/2009/09/22/a-dogs-eye-view

--
Bob
www.kanyak.com
  #2  
Old September 30th 13, 11:24 PM posted to rec.pets.dogs.behavior
Michael Savich[_2_]
external usenet poster
 
Posts: 1
Default Canine vision: Why dogs don't watch TV

On 2013-09-30 10:15:45 +0000, Opinicus said:

From last week's *The Economist*:

"For people, the average CFF (critical flicker-fusion frequency: the
lowest frequency at which a flickering light appears to be a constant
source of illumination) is 60 hertz (ie, 60 times a second). This is
why the refresh-rate on a television screen is usually set at that
value. Dogs have a CFF of 80Hz, which is probably why they do not seem
to like watching television. To a dog a TV programme looks like a
series of rapidly changing stills."

http://preview.tinyurl.com/lb86qjt

See also:
http://onpoint.wbur.org/2009/09/22/a-dogs-eye-view


Would it be possible for somebody to make a TV that dogs could appreciate?

  #3  
Old October 2nd 13, 01:14 PM posted to rec.pets.dogs.behavior
Glenn Lyford
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Posts: 79
Default Canine vision: Why dogs don't watch TV

Well, this all really applies to CRTs. LCDs, LEDs, and plasma have a longer persistence and dogs are able to see the images easily. Just ask my Aussie who barks like crazy at any animal that comes on screen (geico camel, horses, etc.), then runs into the kitchen "behind" the TV to see if he can find them.
 




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