| Records |
Author  |
Mersmann, D.; Tomasello, M.; Call, J.; Kaminski, J.; Taborsky, M. |
| Title |
Simple Mechanisms Can Explain Social Learning in Domestic Dogs (Canis familiaris) |
Type |
Journal Article |
| Year |
2011 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
| Volume |
117 |
Issue |
8 |
Pages |
675-690 |
| Keywords |
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| Abstract |
Abstract Recent studies have suggested that domestic dogs (Canis familiaris) engage in highly complex forms of social learning. Here, we critically assess the potential mechanisms underlying social learning in dogs using two problem-solving tasks. In a classical detour task, the test dogs benefited from observing a demonstrator walking around a fence to obtain a reward. However, even inexperienced dogs did not show a preference for passing the fence at the same end as the demonstrator. Furthermore, dogs did not need to observe a complete demonstration by a human demonstrator to pass the task. Instead, they were just as successful in solving the problem after seeing a partial demonstration by an object passing by at the end of the fence. In contrast to earlier findings, our results suggest that stimulus enhancement (or affordance learning) might be a powerful social learning mechanism used by dogs to solve such detour problems. In the second task, we examined whether naïve dogs copy actions to solve an instrumental problem. After controlling for stimulus enhancement and other forms of social influence (e.g. social facilitation and observational conditioning), we found that dogs’ problem solving was not influenced by witnessing a skilful demonstrator (either an unknown human, a conspecific or the dog’s owner). Together, these results add to evidence suggesting that social learning may often be explained by relatively simple (but powerful) mechanisms. |
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Blackwell Publishing Ltd |
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| ISSN |
1439-0310 |
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| Call Number |
Equine Behaviour @ team @ |
Serial |
5409 |
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| Author |
Riedel, J.; Buttelmann, D.; Call, J.; Tomasello, M. |
| Title |
Domestic dogs (Canis familiaris) use a physical marker to locate hidden food |
Type |
Journal Article |
| Year |
2006 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
9 |
Issue |
1 |
Pages |
27-35 |
| Keywords |
Animals; Cues; Dogs/*psychology; Female; Gestures; Humans; Male; *Nonverbal Communication; *Recognition (Psychology); Signal Detection (Psychology); Visual Perception |
| Abstract |
Dogs can use the placement of an arbitrary marker to locate hidden food in an object-choice situation. We tested domestic dogs (Canis familiaris) in three studies aimed at pinning down the relative contributions of the human's hand and the marker itself. We baited one of two cups (outside of the dogs' view) and gave the dog a communicative cue to find the food. Study 1 systematically varied dogs' perceptual access to the marker placing event, so that dogs saw either the whole human, the hand only, the marker only, or nothing. Follow-up trials investigated the effect of removing the marker before the dog's choice. Dogs used the marker as a communicative cue even when it had been removed prior to the dog's choice and attached more importance to this cue than to the hand that placed it although the presence of the hand boosted performance when it appeared together with the marker. Study 2 directly contrasted the importance of the hand and the marker and revealed that the effect of the marker diminished if it had been associated with both cups. In contrast touching both cups with the hand had no effect on performance. Study 3 investigated whether the means of marker placement (intentional or accidental) had an effect on dogs' choices. Results showed that dogs did not differentiate intentional and accidental placing of the marker. These results suggest that dogs use the marker as a genuine communicative cue quite independently from the experimenter's actions. |
| Address |
Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6 D-04103, Leipzig, Germany. riedel@eva.mpg.de |
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English |
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1435-9448 |
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| Notes |
PMID:15846526 |
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no |
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Equine Behaviour @ team @ |
Serial |
2488 |
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| Author |
Scheider, L.; Kaminski, J.; Call, J.; Tomasello, M. |
| Title |
Do domestic dogs interpret pointing as a command? |
Type |
Journal Article |
| Year |
2013 |
Publication |
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Abbreviated Journal |
Animal Cognition |
| Volume |
16 |
Issue |
3 |
Pages |
361-372 |
| Keywords |
Communication; Domestic dog; Pointing; Comprehension; Imperative |
| Abstract |
Domestic dogs comprehend human gestural communication flexibly, particularly the pointing gesture. Here, we examine whether dogs interpret pointing informatively, that is, as simply providing information, or rather as a command, for example, ordering them to move to a particular location. In the first study a human pointed toward an empty cup. In one manipulation, the dog either knew or did not know that the designated cup was empty (and that the other cup actually contained the food). In another manipulation, the human (as authority) either did or did not remain in the room after pointing. Dogs ignored the human’s gesture if they had better information, irrespective of the authority’s presence. In the second study, we varied the level of authority of the person pointing. Sometimes this person was an adult, and sometimes a young child. Dogs followed children’s pointing just as frequently as they followed adults’ pointing (and ignored the dishonest pointing of both), suggesting that the level of authority did not affect their behavior. Taken together these studies suggest that dogs do not see pointing as an imperative command ordering them to a particular location. It is still not totally clear, however, if they interpret it as informative or in some other way. |
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Springer-Verlag |
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English |
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1435-9448 |
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no |
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Equine Behaviour @ team @ |
Serial |
5666 |
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| Author |
Schneider, A.-C.; Melis, A.P.; Tomasello, M. |
| Title |
How chimpanzees solve collective action problems |
Type |
Journal Article |
| Year |
2012 |
Publication |
Proceedings of the Royal Society B: Biological Sciences |
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Issue |
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Pages |
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We presented small groups of chimpanzees with two collective action situations, in which action was necessary for reward but there was a disincentive for individuals to act owing to the possibility of free-riding on the efforts of others. We found that in simpler scenarios (experiment 1) in which group size was small, there was a positive relationship between rank and action with more dominant individuals volunteering to act more often, particularly when the reward was less dispersed. Social tolerance also seemed to mediate action whereby higher tolerance levels within a group resulted in individuals of lower ranks sometimes acting and appropriating more of the reward. In more complex scenarios, when group size was larger and cooperation was necessary (experiment 2), overcoming the problem was more challenging. There was highly significant variability in the action rates of different individuals as well as between dyads, suggesting success was more greatly influenced by the individual personalities and personal relationships present in the group. |
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no |
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Equine Behaviour @ team @ |
Serial |
5629 |
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| Author |
Tennie, C.; Call, J.; Tomasello, M. |
| Title |
Untrained chimpanzees (Pan troglodytes schweinfurthii) fail to imitate novel actions |
Type |
Journal Article |
| Year |
2012 |
Publication |
PLoS One |
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7 |
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no |
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Equine Behaviour @ team @ Tennie2012 |
Serial |
6289 |
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| Author |
Tomasello, M. |
| Title |
Cultural Transmission: A View from Chimpanzees and Human Infants |
Type |
Journal Article |
| Year |
2001 |
Publication |
Journal of Cross-Cultural Psychology |
Abbreviated Journal |
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| Volume |
32 |
Issue |
2 |
Pages |
135-146 |
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| Abstract |
Human beings are biologically adapted for culture in ways that other primates are not, as evidenced most clearly by the fact that only human cultural traditions accumulate modifications over historical time (the ratchet effect). The key adaptation is one that enables individuals to understand other individuals as intentional agents like the self. This species-unique form of social cognition emerges in human ontogeny at around 1 year of age as infants begin to engage with other persons in various kinds of joint attentional activities involving gaze following, social referencing, and gestural communication. Young children's joint attentional skills then engender some uniquely powerful forms of cultural learning, enabling the acquisition of language, discourse skills, tool use practices, and many other conventional activities. These novel forms of cultural learning allow human beings to pool their cognitive resources both contemporaneously and over historical time in ways that are unique in the animal kingdom. |
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10.1177/0022022101032002002 |
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Equine Behaviour @ team @ |
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2968 |
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| Author |
Tomasello, M. |
| Title |
The cultural origins of human cognition. |
Type |
Book Whole |
| Year |
1999 |
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Harvard University Press |
Place of Publication |
Camebridge,MA. |
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no |
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Equine Behaviour @ team @ |
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5597 |
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Tomasello, M. |
| Title |
Do apes ape? |
Type |
Book Chapter |
| Year |
1996 |
Publication |
Social learning in animals: the roots of culture |
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Pages |
319-346 |
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Academic Press |
Place of Publication |
London |
Editor |
Heyes, C. M.; Galef, B.G. |
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no |
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Equine Behaviour @ team @ |
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5600 |
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| Author |
Tomasello, M. |
| Title |
Cultural transmission in the tool use and communicatory signalling of chimpanzees? |
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Book Chapter |
| Year |
1990 |
Publication |
Language and Intelligence in Monkeys and Apes. |
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274-311 |
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Cambridge University Press |
Place of Publication |
Cambridge |
Editor |
Parker,S.T.;Gibson,K.R. |
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no |
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Equine Behaviour @ team @ |
Serial |
5267 |
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| Author |
Tomasello, M.; Call, J. |
| Title |
Do chimpanzees know what others see ? or only what they are looking at? |
Type |
Book Chapter |
| Year |
2006 |
Publication |
Rational Animals? |
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Pages |
371-384 |
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Oxford University Press |
Place of Publication |
Oxford |
Editor |
Nudds, M.; Hurley, S. |
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no |
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Equine Behaviour @ team @ |
Serial |
4094 |
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