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Dogs, man's best friends, have a clear strategy for dealing with angry
owners—they look away.
New research shows that dogs limit their eye contact with angry humans. The
scientists suggest this may be an attempt to calm humans down. This behavior may
have evolved as dogs gradually learned they could benefit from avoiding
conflicts with humans.
To conduct the tests, the University of Helsinki researchers trained 31
dogs to rest in front of a video screen. Facial photos of dogs and humans were
displayed on the screen for 1.5 seconds. They showed threatening, pleasant and
neutral expressions. Nearby cameras tracked the dogs' eye movements.
Dogs in the study looked most at the eyes of humans and other dogs to sense
their emotions. When dogs looked at expressions of angry dogs, their eyes rested
more on the mouth, perhaps to interpret the threatening expressions. And when
looking at angry humans, they tended to turn away their gaze.
Dogs may have learned to detect threat signs from humans and respond by
trying to make peace, according to researcher Sanni Somppi. Avoiding conflicts
may have helped dogs develop better bonds with humans.
The researchers also note that dogs scan faces as a whole to sense how
people are feeling, instead of focusing on a given feature. They suggest this
indicates that dogs aren't sensing emotions from a single feature, but piecing
together information from all facial features just as humans do.
Q19. What do dogs do when they are faced with angry humans?
Q20. What does a dog do when it sees the expressions of angry dogs?
Q21. How does a dog sense people's feelings? 【考后估分】 新东方四六级估分系统，逼真还原6月试题，精准估分提早了解过没过线！具体估分规则，敬请关注新东方网四六级真题解析专题！
发表于 2017-6-17 12:29:06
