Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Dogs follow human voice direction to find hidden food

07.05.2014

Max Planck researchers found that dogs and puppies can locate hidden food by using human voice direction referentially

Dogs and puppies are gifted at interpreting human communicative hints, and previous studies showed that they use human visual cues like pointing or gazing in order to find hidden food. Researchers of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, have now studied for the first time whether dogs can locate hidden food by relying on auditory information alone.


In this experiment, the dogs know that food is hidden in one of these boxes - but they don't know in which one. To find the tasty snack, they are following the human voice.

© MPI f. Evolutionary Anthropology

In an experimental setting, an experimenter went behind a barrier and presented adult dogs and puppies with two identical boxes, but only one of them contained food. From behind the barrier, hidden from the dog’s sight, the experimenter vocalized excitedly while looking towards the box containing food. Most adult dogs and socialized puppies successfully followed the direction of the experimenter’s voice to the food source; the puppies even beat the adult dogs in this task.

The researchers conclude that dogs do not rely on visual cues only, but on a combination of human communicative hints. These social skills may have become part of the dog’s genetic make-up during domestication.

Dogs and puppies are particularly skilled in using human communicative cues like pointing or gazing, especially when it comes to locating hidden food. Wolves, dogs’ closest relative, and chimpanzees on the other hand are unable to use these cues to the same end.

Recent studies explored the ability of children and chimpanzees to follow human voice direction to a target, like a toy or food item, and found that while 1-year-old children succeeded, chimpanzees did not. In their current study Federico Rossano and colleagues have now investigated for the first time whether adult dogs and dog puppies are capable of this as well.

The researchers placed a large wooden barrier in the room and used two identical containers for hiding the food. After showing the food to the dog, the experimenter closed a curtain, hid the food in one of the boxes and opened the curtain again:  Both containers were now visible to the dog. The experimenter then sat down behind the barrier facing the box with the food reward and expressed her excitement verbally. The experimenter then released the dog so he could choose one of the containers.

“Most of the dogs successfully and repeatedly followed the experimenter’s voice direction to find the hidden food”, says Rossano. “They performed as well in this task - if not better – than human infants.” In a follow up study the researchers ruled out the possibility that dogs could locate the hidden food just via smell.

In a second part of the study puppies of eight to 14 weeks of age took part in the same test. While some of these puppies had interacted with humans regularly, others had had little contact to humans. “The puppies, too, were able to use the human’s voice direction to find the hidden food”, says Rossano. “Interestingly, the group of normally socialized puppies even outperformed the adult dogs while the ones with little contact with humans performed at chance level.”

The results of these studies show that dogs and puppies use several human communicative cues or a combination of them in flexible ways to find hidden food, and that they learn these skills very quickly once they get in touch with humans. “Dogs may have been selected for their ability to pay special attention to humans”, says Rossano. “This set of social skills may have become part of their genetic repertoire”.

Contact 

Sandra Jacob

Press and Public Relations

Max Planck Institute for Evolutionary Anthropology, Leipzig

Phone: +49 341 3550-122

 

Original publication

 
Federico Rossano, Marie Nitzschner, Michael Tomasello
Domestic dogs and puppies can use human voice direction referentially
Proceedings of the Royal Society B, 7 May 2014, http://dx.doi.org/10.1098/rspb.2013.3201

Dr. Federico Rossano | Max-Planck-Institute

Further reports about: Dogs Evolutionary chimpanzees combination direction identical

More articles from Life Sciences:

nachricht Nanotubes built from protein crystals: Breakthrough in biomolecular engineering
15.11.2018 | Tokyo Institute of Technology

nachricht Insect Antibiotic Provides New Way to Eliminate Bacteria
15.11.2018 | Universität Zürich

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Massive impact crater from a kilometer-wide iron meteorite discovered in Greenland

15.11.2018 | Earth Sciences

When electric fields make spins swirl

15.11.2018 | Physics and Astronomy

Discovery of a cool super-Earth

15.11.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>