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Do dogs and cats really dream?

By Maryann Mott, HealthDay
6/29/2010

How many pet owners have gotten a chuckle out of watching their dog sleep while its paws race frenetically in place?

Many figured that Rover was romping somewhere in dreamland, and scientists say they were right: Pets do dream while sleeping.

As dogs and cats doze, images of past events replay in their minds much the same way humans recall experiences while dreaming, said Matthew Wilson of MIT's Picower Institute for Learning and Memory in Cambridge, Mass. That's because the hippocampus, a part of the brain involved in memory, is basically wired the same way in virtually all vertebrates and mammals, he said.

"If you compared a hippocampus in a rat to a dog; in a cat to a human, they contain all of the same pieces," said Wilson, an associate professor of brain and cognitive sciences.

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REM occurs approximately every 90 minutes in people, and every 25 minutes in cats.

In dogs, research shows the frequency and length of dreams is linked to their physical size, said psychologist Stanley Coren, author of several books, including "How Dogs Think: Understanding the Canine Mind."

For example, he said, mastiffs and Great Danes might dream every 45 minutes for about five minutes, compared to their smaller canine cousins that enter a dream state every 10 minutes with episodes lasting less than 60 seconds.

Owners can tell if their dozing dog or feline is dreaming by looking for these clues: whisker twitching, paw tremors, irregular breathing and — in dogs — occasional high-pitched yips.

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Cat's Dream

Pablo Neruda

How neatly a cat sleeps,
sleeps with its paws and its posture,
sleeps with its wicked claws,
and with its unfeeling blood,
sleeps with all the rings--
a series of burnt circles--
which have formed the odd geology
of its sand-colored tail.

I should like to sleep like a cat,
with all the fur of time,
with a tongue rough as flint,
with the dry sex of fire;
and after speaking to no one,
stretch myself over the world,
over roofs and landscapes,
with a passionate desire
to hunt the rats in my dreams.

I have seen how the cat asleep
would undulate, how the night
flowed through it like dark water;
and at times, it was going to fall
or possibly plunge into
the bare deserted snowdrifts.
Sometimes it grew so much in sleep
like a tiger's great-grandfather,
and would leap in the darkness over
rooftops, clouds and volcanoes.

Sleep, sleep cat of the night,
with episcopal ceremony
and your stone-carved moustache.
Take care of all our dreams;
control the obscurity
of our slumbering prowess
with your relentless heart
and the great ruff of your tail.

Translated by Alastair Reid






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Mao ni iring liwat sa tag-iya... kusog mag damgo 



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kadto pod tawong bag-ong nipanaw namong iro nga si rex kusog kaayo to magdamgo ug daman.  kausa nakagawas mi tanan alas dos sa kaadlawon ug nangadto sa iyang doghouse kay grabe ang daman, dugay nakamata nga among gipukaw kay mora na gyod intawog gibangungot.   

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Gidamgo ko sa una gamay pa ko nga nag alsa kono ko ug troso unya nadakdak  then napanggos akong kilid sa dunggan, nataymingan pud to nga akong iring nagbugno samtang natulog ko ug pagmata nako akong damgo murag tinuod kay dako kaayo ko ug kinamrasan nga mura bitaw pud ug napangos sa kahoy. Dito pud tong duha ka iring nagkinamrasay sa kilid sa akong dunggan. O.T ni pero naa gihapoy related kay iring man,bale di raman iring nagdamgo tawo pero gibackgroundnan ug iring nagkinamrasay.

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