Can dogs (Canis familiaris) use a mirror to solve a problem?

Tiffani J. Howell, Pauleen C. Bennett

Can dogs (Canis familiaris) use a mirror to solve a problem?

Journal of Veterinary Behavior: Clinical Applications and Research, Volume 6, Issue 6, November–December 2011, Pages 306–312

Abstract

The ability of animals to use a mirror, either as a problem-solving tool or for the purposes of self-recognition, has been tested in several species. However, there are no empirical reports of studies using mirrors with companion dogs, which differ from most animals in that they are from infancy often kept in complex environments containing many reflective surfaces, including household mirrors. We used a simple repeated measures design, with no pre-training, to test whether pet dogs (n = 40) understand the concept of reflection. Each dog accompanied their owner into a room containing a large covered mirror. They were given 1 minute to explore the room, following which the mirror was uncovered. After another minute of exploration, the dog was motivated to attend to the mirror by the owner. A second owner then appeared in an adjoining room displaying the dog’s favourite toy. The second owner stood behind the dog but could be seen in the reflective surface of the mirror. Dogs were more likely to attend to the mirror when the second owner was visible than when the owner was not visible in the mirror. Seven dogs turned away from the mirror to look toward the actual location of the owner. Of these, 2 then attended to the owner in the window more than the mirror. It is possible that these 2 dogs understood the real location of the owner and, therefore, the nature of reflection. However, none of these responses was completely unambiguous and most dogs tested showed no evidence of a capacity to spontaneously use the mirror to locate the second owner.

Theory of mind in dogs?: examining method and concept.

Horowitz, A.
Theory of mind in dogs?: examining method and concept.

Learning and Behvior (impact factor: 1.52). 07/2011; 39(4):314-7. DOI:10.3758/s13420-011-0041-7    

Abstract

In line with other research, Udell, Dorey, and Wynne's (in press) finding that dogs and wolves pass on some trials of a putative theory-of-mind test and fail on others is as informative about the methods and concepts of the research as about the subjects. This commentary expands on these points. The intertrial differences in the target article demonstrate how critical the choice of cues is in experimental design; the intersubject-group differences demonstrate how life histories can interact with experimental design. Even the best-designed theory-of-mind tests have intractable logical problems. Finally, these and previous research results call for the introduction of an intermediate stage of ability, a rudimentary theory of mind, to describe subjects' performance.          

Reevaluating canine perspective-taking behavior.

Udell MA, Wynne CD
Reevaluating canine perspective-taking behavior.

Learn Behav. 2011 Dec ;39(4):318-23. doi: 10.3758/s13420-011-0043-5.

Abstract

Udell, Dorey, and Wynne (2011) demonstrated that both domesticated and nondomesticated canids-specifically, gray wolves-have the capacity to succeed on perspective-taking tasks, suggesting that dogs' ability to respond to the human attentional state is not a by-product of domestication alone. Furthermore, not all dogs were successful on the task. Instead, the occluder type used was a strong predictor of performance, indicating the important role of environment and experience for tasks of this type. Here, we address several commentaries reflecting on the methods and design of that study, as well as the interpretation of the results. We also discuss the positive shift toward more interactive approaches in the field of canine behavior and cognition. Finally, we question the functionality of describing canine social behavior in terms of theory of mind.

Can your dog read your mind?: Understanding the causes of canine perspective taking.

Monique A. R. Udell, Nicole R. Dorey, Clive D. L. Wynne

Can your dog read your mind?: Understanding the causes of canine perspective taking.

Learn Behav. 2011 December; 39(4): 289–302. doi: 10.3758/s13420-011-0034-6

Abstract

Prior studies have documented the domestic dog's (Canis lupus familiaris) sensitivity to human attentional state, including a tendency to preferentially beg for food from attentive individuals and an ability to selectively perform forbidden behaviors when humans are not looking. Due to the success of dogs on perspective-taking tasks, some have hypothesized that domestic dogs may have theory of mind, or the ability to infer what other individuals know. Here we provide the first evidence that nondomesticated canids, grey wolves (Canis lupus), are also sensitive to human attentional state under some conditions. We also demonstrate that dogs do not display an undifferentiated sensitivity to all visual cues of attentional state. Rather, dogs are more sensitive to stimuli encountered in their home environment. Some dogs perform poorly on perspective-taking tasks. These findings have important implications for the interpretation of research designed to understand complex social cognition across species.

Clever hounds: social cognition in the domestic dog (Canis familiaris)

Jonathan J Cooper, Clare Ashton, Sarah Bishop, Rebecca West, Daniel S Mills, Robert J Young

Clever hounds: social cognition in the domestic dog (Canis familiaris)

Applied Animal Behaviour Science, Volume 81, Issue 3, 2 May 2003, Pages 229–244

Abstract

This paper reviews the reasons why domestic dogs make good models to investigate cognitive processes related to social living and describes experimental approaches that can be adopted to investigate such processes in dogs. Domestic dogs are suitable models for investigating social cognition skills for three broad reasons. First, dogs originated from wolves, social animals that engage in a number of co-operative behaviours, such as hunting and that may have evolved cognitive abilities that help them predict and interpret the actions of other animals. Second, during domestication dogs are likely to have been selected for mental adaptations for their roles in human society such as herding or companionship. Third, domestic dogs live in a human world and “enculturation” may facilitate the development of relevant mental skills in dogs. Studies of social cognition in animals commonly use experimental paradigms originally developed for pre-verbal human infants. Preferential gaze, for example, can be used as a measure of attention or “surprise” in studies using expectancy violation. This approach has been used to demonstrate simple numerical competence in dogs. Dogs also readily use both conspecific and human social signals (e.g. looking or pointing) as information sources to locate hidden rewards such as food or favourite toys. Such abilities make dogs particularly good models for investigating perspective-taking tasks, where animals are required to discriminate between apparently knowledgeable and apparently ignorant informants.