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Dogs turn down extra food if a human provides the right cues

Photo: french bulldog

Dogs can be manipulated to choose against their preference by human cues, opting to turn down extra food in order to follow the human


2012-05-31

From the Public Library of Science media release:

Dogs can be manipulated to choose against their preference by human cues, opting to turn down extra food in order to follow the human's choice, according to results published Apr. 25 in the open access journal PLoS ONE. The work was led by Sarah Marshall-Pescini of the University of Milan.

In the study, the researchers offered dogs two different food serving sizes. In the absence of any outside influence, the dogs were unsurprisingly much more likely to choose the larger of the two. When a human expressed more interest in the smaller serving, though, for example by handling the food in the smaller serving, the dogs were more likely to choose the smaller serving.

This effect was not seen if the human expressed interest in the small serving simply by approaching the plate without handling it, highlighting the complexity of the dogs' response to different human behaviors. These results provide further insight into dogs' social bias and their sensitivity to human cues.

Marshall-Pescini S, Passalacqua C, Miletto Petrazzini ME, Valsecchi P, Prato-Previde E (2012) "Do Dogs (Canis lupus familiaris) Make Counterproductive Choices Because They Are Sensitive to Human Ostensive Cues?" PLoS ONE 7(4): e35437. doi:10.1371/journal.pone.0035437

This research was supported by a doctoral and post-doctoral grant from Milan University to Chiara Passalacqua and Sarah Marshall-Pescini. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


2012-05-31

http://dx.plos.org/10.1371/journal.pone.0035437

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