By Deirdre Tynan •
Published: 02 Sep 2021 • 9:20
A study compared dogs’ spontaneous reactions to intentional and unintentional human behaviour and found that dogs reacted differently depending on the condition.
Over our long shared history, dogs have developed a range of skills for bonding with human beings. Their ability to make sense of human actions, demonstrated by every “sit,” “lay down,” and “roll over,” is just one such skill.
But whether dogs understand human intentions, or merely respond to outcomes, remains unclear. The ability to recognize another’s intentions – or at least conceive of them – is a basic component of Theory of Mind, the ability to attribute mental states to oneself and others, long regarded as uniquely human. Do dogs have this basic component of Theory of Mind, the ability to tell the difference between something done on purpose and something done by accident?
To answer this question, a team of researchers in Germany conducted an experiment that examined how dogs reacted when food rewards were withheld, both intentionally and unintentionally. They found that dogs respond differently depending on whether the actions of the experimenter were intentional or unintentional. This, the researchers say, shows that dogs can distinguish between actions that were done on purpose or accidentally.
To reach their conclusions, the researchers conducted an experiment using the “unable vs. unwilling” paradigm. This works by examining whether test subjects react differently towards a human experimenter who either intentionally (the unwilling condition) or unintentionally (the unable condition) withholds rewards from them. Despite being an established paradigm in studies of human and animal cognition, the unable vs. unwilling paradigm had never been previously used to investigate dogs.
The experiment was conducted with 51 dogs, each of which was tested under three conditions. In each condition, the dog was separated from the human tester by a transparent barrier. The basic situation was that the experimenter fed the dog pieces of dog food through a gap in the barrier. In the “unwilling” condition, the experimenter suddenly withdrew the reward through the gap in the barrier and placed it in front of herself. In the “unable-clumsy” condition, the experimenter brought the reward to the gap in the barrier and “tried” to pass it through the gap but then “accidentally” dropped it. In the “unable-blocked” condition, the experimenter again tried to give the dog a reward, but was unable to because the gap in the barrier was blocked. In all conditions, the reward remained on the tester’s side of the barrier.
“If dogs are indeed able to ascribe intention-in-action to humans,” says Dr. Juliane Bräuer, “we would expect them to show different reactions in the unwilling condition compared to the two unable conditions. As it turns out, this is exactly what we observed.”
The primary behaviour measured by the researchers was the time dogs waited before approaching the reward they were denied. The researchers predicted that, if dogs are able to identify human intentions, they would wait longer before approaching the reward in the unwilling condition, where they were not supposed to have the reward, than in the two unable conditions in which the reward was, in fact, meant for them.
Not only did the dogs wait longer in the unwilling condition than in the unable conditions, they were also more likely to sit or lie down – actions often interpreted as appeasing behaviours – and stop wagging their tails.
“The dogs in our study clearly behaved differently depending on whether the actions of a human experimenter were intentional or unintentional,” says Britta Schünemann, the first author of the study. “This suggests that dogs may indeed be able to identify humans’ intention-in-action,” adds Hannes Rakoczy from the University of Göttingen.
The team acknowledges that their findings may be met with scepticism and that further study is needed to address alternative explanations, such as behavioural cues on the part of experimenters or knowledge transfer from prior dog training.
“Nevertheless,” the paper concludes, “the findings present important initial evidence that dogs may have at least one aspect of Theory of Mind: The capacity to recognize intention-in-action.”
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Deirdre Tynan is an award-winning journalist who enjoys bringing the best in news reporting to Spain’s largest English-language newspaper, Euro Weekly News. She has previously worked at The Mirror, Ireland on Sunday and for news agencies, media outlets and international organisations in America, Europe and Asia. A huge fan of British politics and newspapers, Deirdre is equally fascinated by the political scene in Madrid and Sevilla. She moved to Spain in 2018 and is based in Jaen.
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