A study showed that dogs could show jealousy if they caught their owners behaving sweetly toward other dogs.
If you get the feeling that your dog resents the attention you give to other people and animals, you might be right, according to a 2014 study that became the subject of news reports and a meme showing a non-plussed pup: Christine Harris, a psychology professor at the University of California-San Diego (UCSD), co-led a team that gauged the reactions of 36 pooches when they saw their owners behaving sweetly toward a stuffed dog. She said in a 2014 press release: Our study suggests not only that dogs do engage in what appear to be jealous behaviors but also that they were seeking to break up the connection between the owner and a seeming rival. We can't really speak to the dogs' subjective experiences, of course, but it looks as though they were motivated to protect an important social relationship. According to the study, 78 percent of the dogs tried to 'push or touch' their owner while they interacted with the stuffed doll; by comparison, 42 percent of them behaved that way when the human was handling an inanimate object, a Jack-O-Lantern pail. When they saw their owner reading a pop-up book that played melodies, only 22 percent of the dogs sought attention. The study did receive some criticism at the time from Laurie Santos, director of the Canine Cognition Center at Yale University, who said that Harris and her team did not measure the dogs' reactions to the stuffed animal or the pail without their owners present, leaving it unclear whether the animals were reacting out of fear. Harris, who is also the editor-in-chief of the journal Emotion Review, told us in a phone interview: I think it would be nice to take a look at how animals react to the objects by themselves. But I'm not concerned that that invalidates the study in any way. There's a couple of reasons for that. One, emotion researchers really think of jealousy as a love triangle. Once you take one individual out of that love triangle, you're really not looking at jealousy. It might be the case - I can't completely rule it out that dogs would have shown aggression toward the stuffed animal without having seen this 'betrayal' [by] their owner. But that's not our only measure. Her theory is that jealousy (which is different from envy in that it 'requires a social triangle' Harris says) evolved out of physical need: If you're a species that forms interpersonal relationships and these interpersonal relationships somehow produce an advantage, and these interpersonal relationships can be stolen or usurped by someone else, it behooves you to guard them. She also said that her team's findings did not come as a surprise for several dog owners - many of whom already feel they have observed their dogs displaying emotions. However, she cautioned: We don't know exactly what they feel. But I believe they have the motivational state of jealousy. And so to really know if that's true, you need to do research. We need to do research on many things that we think we know are true, because sometimes what we think isn't right.
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