| Records |
| Author |
Call, J. |
| Title |
Beyond learning fixed rules and social cues: abstraction in the social arena |
Type |
Journal Article |
| Year |
2003 |
Publication |
Philosophical Transactions of the Royal Society B: Biological Sciences |
Abbreviated Journal |
Phil. Trans. Biol. Sci. |
Volume  |
358 |
Issue |
1435 |
Pages |
1189-1196 |
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| Abstract |
Abstraction is a central idea in many areas of physical comparative cognition such as categorization, numerical competence or problem solving. This idea, however, has rarely been applied to comparative social cognition. In this paper, I propose that the notion of abstraction can be applied to the social arena and become an important tool to investigate the social cognition and behaviour processes in animals. To make this point, I present recent evidence showing that chimpanzees know about what others can see and about what others intend. These data do not fit either low-level mechanisms based on stimulus-response associations or high-level explanations based on metarepresentational mechanisms such as false belief attribution. Instead, I argue that social abstraction, in particular the development of concepts such as seeing in others, is key to explaining the behaviour of our closest relative in a variety of situations. |
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refbase @ user @ |
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3524 |
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| Author |
Herrmann, E.; Call, J.; Hernandez-Lloreda, M.V.; Hare, B.; Tomasello, M. |
| Title |
online material |
Type |
Journal Article |
| Year |
2007 |
Publication |
Science |
Abbreviated Journal |
Science |
| Volume |
317 |
Issue |
5843 |
Pages |
1360-1366 |
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| Abstract |
Humans have many cognitive skills not possessed by their nearest primate relatives. The cultural intelligence hypothesis argues that this is mainly due to a species-specific set of social-cognitive skills, emerging early in ontogeny, for participating and exchanging knowledge in cultural groups. We tested this hypothesis by giving a comprehensive battery of cognitive tests to large numbers of two of humans' closest primate relatives, chimpanzees and orangutans, as well as to 2.5-year-old human children before literacy and schooling. Supporting the cultural intelligence hypothesis and contradicting the hypothesis that humans simply have more “general intelligence,” we found that the children and chimpanzees had very similar cognitive skills for dealing with the physical world but that the children had more sophisticated cognitive skills than either of the ape species for dealing with the social world. |
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Equine Behaviour @ team @ |
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4244 |
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| Author |
Herrmann, E.; Call, J.; Hernandez-Lloreda, M.V.; Hare, B.; Tomasello, M. |
| Title |
Humans Have Evolved Specialized Skills of Social Cognition: The Cultural Intelligence Hypothesis |
Type |
Journal Article |
| Year |
2007 |
Publication |
Science |
Abbreviated Journal |
Science |
| Volume |
317 |
Issue |
5843 |
Pages |
1360-1366 |
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| Abstract |
Humans have many cognitive skills not possessed by their nearest primate relatives. The cultural intelligence hypothesis argues that this is mainly due to a species-specific set of social-cognitive skills, emerging early in ontogeny, for participating and exchanging knowledge in cultural groups. We tested this hypothesis by giving a comprehensive battery of cognitive tests to large numbers of two of humans' closest primate relatives, chimpanzees and orangutans, as well as to 2.5-year-old human children before literacy and schooling. Supporting the cultural intelligence hypothesis and contradicting the hypothesis that humans simply have more “general intelligence,” we found that the children and chimpanzees had very similar cognitive skills for dealing with the physical world but that the children had more sophisticated cognitive skills than either of the ape species for dealing with the social world. |
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10.1126/science.1146282 |
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no |
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Equine Behaviour @ team @ |
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4245 |
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| Author |
Mulcahy, N.J.; Call, J. |
| Title |
Apes save tools for future use |
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Journal Article |
| Year |
2006 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
312 |
Issue |
5776 |
Pages |
1038-1040 |
| Keywords |
Animals; Association Learning; *Cognition; *Evolution; *Mental Processes; *Pan paniscus; Pan troglodytes; *Pongo pygmaeus |
| Abstract |
Planning for future needs, not just current ones, is one of the most formidable human cognitive achievements. Whether this skill is a uniquely human adaptation is a controversial issue. In a study we conducted, bonobos and orangutans selected, transported, and saved appropriate tools above baseline levels to use them 1 hour later (experiment 1). Experiment 2 extended these results to a 14-hour delay between collecting and using the tools. Experiment 3 showed that seeing the apparatus during tool selection was not necessary to succeed. These findings suggest that the precursor skills for planning for the future evolved in great apes before 14 million years ago, when all extant great ape species shared a common ancestor. |
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Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103 Leipzig, Germany |
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English |
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1095-9203 |
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PMID:16709782 |
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no |
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refbase @ user @ |
Serial |
466 |
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| Author |
Kaminski, J.; Call, J.; Fischer, J. |
| Title |
Word Learning in a Domestic Dog: Evidence for “Fast Mapping” |
Type |
Journal Article |
| Year |
2004 |
Publication |
Science |
Abbreviated Journal |
Science |
| Volume |
304 |
Issue |
5677 |
Pages |
1682-1683 |
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During speech acquisition, children form quick and rough hypotheses about the meaning of a new word after only a single exposure--a process dubbed “fast mapping.” Here we provide evidence that a border collie, Rico, is able to fast map. Rico knew the labels of over 200 different items. He inferred the names of novel items by exclusion learning and correctly retrieved those items right away as well as 4 weeks after the initial exposure. Fast mapping thus appears to be mediated by general learning and memory mechanisms also found in other animals and not by a language acquisition device that is special to humans. |
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10.1126/science.1097859 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4678 |
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Melis, A.P.; Warneken, F.; Jensen, K.; Schneider, A.-C.; Call, J.; Tomasello, M. |
| Title |
Chimpanzees help conspecifics obtain food and non-food items |
Type |
Journal Article |
| Year |
2011 |
Publication |
Proceedings of the Royal Society B: Biological Sciences |
Abbreviated Journal |
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278 |
Issue |
1710 |
Pages |
1405-1413 |
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Chimpanzees (Pan troglodytes) sometimes help both humans and conspecifics in experimental situations in which immediate selfish benefits can be ruled out. However, in several experiments, chimpanzees have not provided food to a conspecific even when it would cost them nothing, leading to the hypothesis that prosociality in the food-provisioning context is a derived trait in humans. Here, we show that chimpanzees help conspecifics obtain both food and non-food items—given that the donor cannot get the food herself. Furthermore, we show that the key factor eliciting chimpanzees' targeted helping is the recipients' attempts to either get the food or get the attention of the potential donor. The current findings add to the accumulating body of evidence that humans and chimpanzees share the motivation and skills necessary to help others in situations in which they cannot selfishly benefit. Humans, however, show prosocial motives more readily and in a wider range of contexts. |
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no |
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Equine Behaviour @ team @ |
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5630 |
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Kaminski, J.; Call, J.; Tomasello, M. |
| Title |
Goats' behaviour in a competitive food paradigm: Evidence for perspective taking? |
Type |
Journal Article |
| Year |
2006 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
| Volume |
143 |
Issue |
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Pages |
1341-1356 |
| Keywords |
SOCIAL COGNITION; GOATS; VISUAL PERSPECTIVE TAKING; COMPARATIVE COGNITION |
| Abstract |
Many mammalian species are highly social, creating intra-group competition for such things as food and mates. Recent research with nonhuman primates indicates that in competitive situations individuals know what other individuals can and cannot see, and they use this knowledge to their advantage in various ways. In the current study, we extended these findings to a non-primate species, the domestic goat, using the conspecific competition paradigm developed by Hare et al. (2000). Like chimpanzees and some other nonhuman primates, goats live in fission-fusion societies, form coalitions and alliances, and are known to reconcile after fights. In the current study, a dominant and a subordinate individual competed for food, but in some cases the subordinate could see things that the dominant could not. In the condition where dominants could only see one piece of food but subordinates could see both, subordinates' preferences depended on whether they received aggression from the dominant animal during the experiment. Subjects who received aggression preferred the hidden over the visible piece of food, whereas subjects who never received aggression significantly preferred the visible piece. By using this strategy, goats who had not received aggression got significantly more food than the other goats. Such complex social interactions may be supported by cognitive mechanisms similar to those of chimpanzees. We discuss these results in the context of current issues in mammalian cognition and socio-ecology. |
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refbase @ user @ |
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3430 |
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Brauer, J.; Kaminski, J.; Riedel, J.; Call, J.; Tomasello, M. |
| Title |
Making inferences about the location of hidden food: social dog, causal ape |
Type |
Journal Article |
| Year |
2006 |
Publication |
Journal of comparative psychology |
Abbreviated Journal |
J Comp Psychol |
| Volume |
120 |
Issue |
1 |
Pages |
38-47 |
| Keywords |
Animals; Communication; Cues; Dogs; Exploratory Behavior; *Feeding Behavior; Female; *Food; Male; Pan paniscus; Pan troglodytes; *Visual Perception |
| Abstract |
Domestic dogs (Canis familiaris) and great apes from the genus Pan were tested on a series of object choice tasks. In each task, the location of hidden food was indicated for subjects by some kind of communicative, behavioral, or physical cue. On the basis of differences in the ecologies of these 2 genera, as well as on previous research, the authors hypothesized that dogs should be especially skillful in using human communicative cues such as the pointing gesture, whereas apes should be especially skillful in using physical, causal cues such as food in a cup making noise when it is shaken. The overall pattern of performance by the 2 genera strongly supported this social-dog, causal-ape hypothesis. This result is discussed in terms of apes' adaptations for complex, extractive foraging and dogs' adaptations, during the domestication process, for cooperative communication with humans. |
| Address |
Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. jbraeuer@eva.mpg.de |
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Washington, D.C. : 1983 |
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0735-7036 |
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PMID:16551163 |
Approved |
yes |
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refbase @ user @ |
Serial |
597 |
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Call, J.; Brauer, J.; Kaminski, J.; Tomasello, M. |
| Title |
Domestic dogs (Canis familiaris) are sensitive to the attentional state of humans |
Type |
Journal Article |
| Year |
2003 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
| Volume |
117 |
Issue |
3 |
Pages |
257-263 |
| Keywords |
Animals; *Appetitive Behavior; *Attention; *Bonding, Human-Pet; *Concept Formation; Cues; Dogs/*psychology; Female; Humans; *Inhibition (Psychology); Male; Nonverbal Communication |
| Abstract |
Twelve domestic dogs (Canis familiaris) were given a series of trials in which they were forbidden to take a piece of visible food. In some trials, the human continued to look at the dog throughout the trial (control condition), whereas in others, the human (a) left the room, (b) turned her back, (c) engaged in a distracting activity, or (d) closed her eyes. Dogs behaved in clearly different ways in most of the conditions in which the human did not watch them compared with the control condition, in which she did. In particular, when the human looked at them, dogs retrieved less food, approached it in a more indirect way, and sat (as opposed to laid down) more often than in the other conditions. Results are discussed in terms of domestic dogs' social-cognitive skills and their unique evolutionary and ontogenetic histories. |
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Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. call@eva.mpg.de |
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Washington, D.C. : 1983 |
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0735-7036 |
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PMID:14498801 |
Approved |
no |
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refbase @ user @ |
Serial |
713 |
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| 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 |
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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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1439-0310 |
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Equine Behaviour @ team @ |
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5409 |
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