Most
dog owners know that their four-legged friends experience jealousy whenever
the attention they seek is diverted to someone or something else. A study
published in PLOS ONE (July 23, 2014), a scientific journal, confirms that dogs do get jealous. Other
scientists say the research may influence human studies on the complex
emotion.
Christine
Harris, professor of psychology at the University of California, San Diego,
conducted the dog jealousy study. She gave dog owners three objects: (1) a
picture book that the owners read aloud, (2) a toy dog that moved and barked,
and (3) an object that their own dog had never seen before (a lolly bucket).
The dog owners were asked to treat the toy dog and bucket like real dogs – pat them,
talk to them, and play with them. Of course they had to do this in front of
their own dogs.
The
results of the study showed that 80% of dogs pushed or touched their owners
whenever the owner was cuddling the toy dog or lolly bucket. They did this
twice as much when the toy dog was given attention than when the bucket was
given attention, and four times more than when their owner was reading the
book. And 25% of dogs snapped or barked at the toy dog. Only one dog barked at the
bucket and the book.
Harris
maintains that the dogs' reactions suggest a basic instinct for jealousy – and to
express a visual display of displeasure. Some had violent reactions when they
perceived a rival was given the attention they wanted or expected.
The
research studied only 36 dogs, but Harris thinks it may lead to further studies
on jealous behaviour – of dogs and humans. “It suggests that some of our ideas
about the nature of jealousy, like that it requires complex cognition, are
incorrect,” Harris said. “All you need is a loved one and a rival.”
The
study may lead to how and why jealousy evolved, from infancy to adulthood. Once
researchers understand how jealousy develops, they can understand what aspects
are unhealthy, and what leads to violent reactions. “Jealousy has tremendous
human consequences,” Harris said. “And for adult humans it’s very complex. We
think about these experiences after they occur, wondering if they mean that we’re
unlovable or ugly, or if we’re going to lose our best friend or our lover. It’s
a very rich emotion.”
www.canberratimes.com.au
July 25, 2014
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