Matching-to-sample abstract-concept learning by dogs (Canis familiaris)

Area of Science:

• Cognitive Science
• Animal Behavior
• Comparative Psychology

Background:

• The abstract concept of sameness is fundamental to higher-order cognition like math and language.
• Historically considered a human-unique trait, abstract-concept learning is now recognized across diverse species due to convergent evolution.
• No prior research had demonstrated abstract-concept learning in any canid species.

Purpose of the Study:

• To investigate abstract-concept learning in domestic dogs.
• To determine if dogs can learn and apply the concept of sameness.
• To assess transfer of learning to novel stimuli in canids.

Main Methods:

• Six domestic dogs were trained on a two-choice olfactory matching-to-sample (MTS) task.
• A training set of 48 unique odors was used across trial-unique sessions.
• Abstract-concept learning was assessed by testing for transfer to novel odors after reaching an 83% accuracy criterion.

Main Results:

• Dogs successfully learned to match novel odors with above-chance accuracy.
• Performance on novel odors exceeded established baseline levels.
• The results satisfy criteria for full abstract-concept learning in dogs.

Conclusions:

• This study presents the first evidence of matching-to-sample (MTS) concept learning in domestic dogs.
• Dogs exhibit abstract-concept learning abilities, showing qualitative similarities to other species.
• The findings suggest that judging sameness is a more general cognitive process than previously assumed.