Repost of article by Stephanie Pappas, LiveScience Senior Writer
Source: Huffington Post, June 8, 2012
Dog Sad When Owner Sad? Study Shows Pets' Reaction To Human Tears
We found this to be an iteresting arcticle, so we wanted to share.
Plenty of pet owners are comforted by a pair of puppy-dog eyes or a
swipe of the tongue when their dog catches them crying. Now, new
research suggests that dogs really do respond uniquely to tears. But
whether pets have empathy for human pain is less clear.
In a
study published online May 30 in the journal Animal Cognition,
University of London researchers found that dogs were more likely to
approach a crying person than someone who was humming or talking, and
that they normally responded to weeping with submissive behaviors. The
results are what you might expect if dogs understand our pain, the researchers wrote, but it's not proof that they do.
"The humming was designed to be a relatively novel behavior, which
might be likely to pique the dogs' curiosity," study researcher and
psychologist Deborah Custance said in a statement. "The fact that the
dogs differentiated between crying and humming indicates that their
response to crying was not purely driven by curiosity. Rather, the
crying carried greater emotional meaning for the dogs and provoked a
stronger overall response than either humming or talking."
Humans domesticated dogs at least 15,000 years ago, and many a pet owner
has a tale of their canine offering comfort in tough times. Studies
have shown that dogs are experts at human communication,but scientists haven't been able to show conclusively that dogs feel empathy or truly understand the pain of others. In one 2006 study, researchers
had owners fake heart attacks or pretend to be pinned beneath furniture,
and learned that pet dogs failed to go for help (so much for Lassie
saving Timmy from the well).
But seeking out assistance is a
complex task, and Custance and her colleague Jennifer Mayer wanted to
keep it simple. They recruited 18 pet dogs and their owners to test
whether dogs would respond to crying with empathetic behaviors. The dogs
included a mix of mutts, Labrador retrievers, golden retrievers and a
few other common breeds.
The experiment took place in the owners' living rooms. Mayer would
arrive and ignore the dog so that it would have little interest in her.
Then she and the owner would take turns talking, fake-crying and
humming.
Of the 18 dogs in the study, 15 approached their owner or Mayer during
crying fits, while only six approached during humming. That suggests
that it's emotional content, not curiosity, that brings the dogs
running. Likewise, the dogs always approached the crying person, never
the quiet person, as one might expect if the dog was seeking (rather
than trying to provide) comfort.
"The dogs approached whoever
was crying regardless of their identity. Thus they were responding to
the person's emotion, not their own needs, which is suggestive of
empathic-like comfort-offering behavior," Mayer said in a statement.
Of the 15 dogs that approached a crying owner or stranger, 13 did so
with submissive body language, such as tucked tails and bowed heads,
another behavior consistent with empathy (the other two were alert or
playful). Still, the researchers aren't dog whisperers, and they can't
prove conclusively what the dogs were thinking.
It's possible that dogs learn to approach crying people because their
owners give them affection when they do, the researchers wrote.
"We in no way claim that the present study provides definitive answers
to the question of empathy in dogs," Mayer and Custance wrote.
Nevertheless, they said, their experiment opens the door for more study
of dogs' emotional lives,
from whether different breeds respond to emotional owners differently
to whether dogs understand the difference between laughter and tears.
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