Dogs see things more slowly

http://www.dailymail.co.uk/sciencetech/article-2685860/Dogs-SLOW-MOTION-Animals-brain-processes-visual-information-faster-humans-study-finds.html


Weird.



Dogs see us move in SLOW MOTION: Animal's brain processes visual information faster than humans, study finds
  • Scientists from Trinity College, Dublin, studied animals including dogs to find that their size and metabolic rate dictates how they experience time
  • They found that time perception depends on how fast an animal’s nervous system processes information in order to react to its environment
  • Smaller animals that need to avoid predators quickly tend to see events unfolding more slowly, but this is not an absolute rule
  • Dogs take in visual information 25 per cent faster than humans, which makes time move more slowly for them
By SARAH GRIFFITHS

PUBLISHED: 12:30, 9 July 2014 | UPDATED: 13:44, 9 July 2014

Animals come in all shapes and sizes and now scientists have demonstrated how their form affects their perception of moving objects.

By studying a variety of animals, researchers have discovered that a creature’s body mass and metabolic rate dictates how it perceives the speed of a moving object - or person.

They found that a dog and housefly see movements more slowly than a human, while a rat and a cat see movement more quickly.






Birthdays are a drag: Scientists have found that while one year seems longer to canines (pictured) that humans, it probably doesn't seem to be dragging on seven times as slowly, meaning that one dog year does not equate to seven human years

THE PERCEPTION OF TIME
To examine how animals experience the passing of time, the scientists examined how fast they could see a light flash in a second (Hz).

The higher the number, the slower time seems to move for the animals.

  • Housefly 250Hz
  • Pigeon 100Hz
  • Rhesus macaque 85Hz
  • Dog 80Hz
  • Human 60Hz
  • Cat 55Hz
  • Brown Rat 39 Hz
  • Gecko 20Hz
  • Sea Turtle 15Hz
The scientists, from the School of Natural Sciences, Trinity College Dublin, Ireland and the Universities of Edinburgh and St Andrews, said that speed perception depends on how fast an animal’s nervous system processes information in order to react to its environment.

To investigate, they showed 34 types of vertebrates, including fish, birds, lizards and mammals, a flashing light.

If the light flashes fast enough, both humans and animals see it as a constant beam, Scientific American reported.

By measuring an animal’s brain activity, they examined the highest frequency that it saw the light flashing.

To animals that can see the light flashing at higher speeds, it is as if movements and situations unfold more slowly, according to the study, published in the journal Animal Behaviour.

The team think that this is advantageous to animals that need to avoid obstacles or predators quickly.

For example, chipmunks and pigeons can see a light flash 100 times a second, while cats see it flash 55 times a second.


Animals that could see the light flash at high speeds were found to have faster metabolisms, confirming the scientists’ hypothesis that the species that can see objects move at a higher frequency of flashes tend to be smaller.

A dog can take in visual information – and see a light flashing – 25 per cent faster than a human, and while this makes it seem that time moves more slowly for canines, it is not enough to mean that one dog year equates to seven human years, they added .

The study demonstrates that a mouse sees the world and experiences time in a very different way to an elephant, for example.

The connection between the perception of time and a creature’s body size and metabolism suggests that different nervous systems have evolved based upon a species’ environment and how they survive in the wild.



Read more: http://www.dailymail.co.uk/sciencetech/article-2685860/Dogs-SLOW-MOTION-Animals-brain-processes-visual-information-faster-humans-study-finds.html#ixzz36z2FGSeD
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I’d dispute the human response, as it is actually 25Hz. Hence the reason movie film is 26 frames a second (old school) and due to resonance office lighting moved from 50Hz to 100Hz.
If we could see at 60Hz the film wouldn’t move smoothly but would appear to jerk.
 
I heard this given as a reason why, when approaching a pigeon in your car, they seem to wait until the very last minute to shift.
 
And could explain why when I nip down the shop for five munutes, I'm meant to feel as if I've abandoned Mrs Dog for a month when I get back.
 

Gout Man

LE
Book Reviewer
Is that why my Dally keeps bashing into me as I go through a door way, especially heading towards the kitchen, my knees are buggered, he has got no space awareness, if there's a gap he will just barge you out the way.
Mad as a hatter but if he thinks your moving slower than you are I suppose he thinks he can get there first?
Have I just confused everyone? I've confused myself!
He's still lovely though.
 
Another case of scientists spending loads of money and time to figure out what most sensible people had already sussed .
My dog has phenomenally quick reactions and can see and react to movement before it has barely registered with a human , same go's for the cat , we had chipmunks as pets and one of those loose in the house is like having four of them running around they move so fast.
Big thing like an elephant or even a tortoise moves slowly but unless killed lives a long time small thing like a chipmunk moves quicker than a quick thing but karks it after a few years , so stands to reason they see things at different rates , other wise chipmunk with tortoise reactions = chipmunk crashing into things at high speed.
 

Gout Man

LE
Book Reviewer
Another case of scientists spending loads of money and time to figure out what most sensible people had already sussed .
My dog has phenomenally quick reactions and can see and react to movement before it has barely registered with a human , same go's for the cat , we had chipmunks as pets and one of those loose in the house is like having four of them running around they move so fast.
Big thing like an elephant or even a tortoise moves slowly but unless killed lives a long time small thing like a chipmunk moves quicker than a quick thing but karks it after a few years , so stands to reason they see things at different rates , other wise chipmunk with tortoise reactions = chipmunk crashing into things at high speed.
And then they'll die a horrible violent death!
And my Dally definitely moves faster than me, saying that so do most things nowadays.
What the eff does all this cost and prove anyway?
 
So a Gecko see's a light flash in 20Hz. Thanks I've always wondered about that.

mynewgeckoisawom4fbe653e09a27.jpg
 
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I believe there's some evidence that human beings who score highly as psychopaths also perceive stuff in slow time, which allows them to focus on the job in hand, usually predation.
 

triskele

Clanker
'other wise chipmunk with tortoise reactions = chipmunk crashing into things at high speed.'
Class comment... why can't experts think such clean and pure thoughts?
 
Does a huge Great Dane see things at the same speed as a Chihuahua then?
 

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