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Author Albiach-Serrano, A.; Guillen-Salazar, F.; Call, J.
Title Mangabeys (Cercocebus torquatus lunulatus) solve the reverse contingency task without a modified procedure Type Journal Article
Year (up) 2007 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
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Abstract Problem solving often relies on generating new responses while inhibiting others, particularly prepotent ones. A paradigm to study inhibitory abilities is the reverse contingency task (Boysen and Berntson in J Exp Psychol Anim Behav Process 21:82-86, 1995), in which two different quantities of food are offered to an individual who receives the array he did not choose. Therefore, mastery of the task demands selecting the smaller quantity to obtain the larger one. Several non-human primates have been tested in the reverse contingency task. To date, only great apes and rhesus monkeys (Macaca mulatta) have succeeded in the original task, with no need of procedural modifications as the large-or-none contingency, correction trials or symbolic stimuli substituting for actual food quantities. Here, four mangabeys were presented with two stimulus arrays of one and four raisins in the context of the reverse contingency task. Three of them learned to perform the task well above chance without a modified procedure. They also reached above-chance performance when presented with two stimulus arrays of zero and four raisins, despite the initial difficulty of choosing a null quantity. After a period of 7-10 months, in which the animals were not tested on any task, all three subjects continued to perform well, even when presented with novel quantity pairs.
Address Unidad de Etologia y Bienestar Animal, Universidad Cardenal Herrera, 46113, Moncada (Valencia), Spain, analse@alumni.uv.es
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Language English Summary Language Original Title
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ISSN 1435-9448 ISBN Medium
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Notes PMID:17318622 Approved no
Call Number Equine Behaviour @ team @ Serial 2418
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Author Herrmann, E.; Call, J.; Hernandez-Lloreda, M.V.; Hare, B.; Tomasello, M.
Title online material Type Journal Article
Year (up) 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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Call Number Equine Behaviour @ team @ Serial 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 (up) 2007 Publication Science Abbreviated Journal Science
Volume 317 Issue 5843 Pages 1360-1366
Keywords
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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Notes 10.1126/science.1146282 Approved no
Call Number Equine Behaviour @ team @ Serial 4245
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Author Bräuer, J.; Call, J.; Tomasello, M.
Title Chimpanzees do not take into account what others can hear in a competitive situation Type Journal Article
Year (up) 2008 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 11 Issue 1 Pages 1435-9448
Keywords Social cognition – Food competition – Perspective taking
Abstract Chimpanzees (Pan troglodytes) know what others can and cannot see in a competitive situation. Does this reflect a general understanding the perceptions of others` In a study by Hare et al. (2000) pairs of chimpanzees competed over two pieces of food. Subordinate individuals preferred to approach food that was behind a barrier that the dominant could not see, suggesting that chimpanzees can take the visual perspective of others. We extended this paradigm to the auditory modality to investigate whether chimpanzees are sensitive to whether a competitor can hear food rewards being hidden. Results suggested that the chimpanzees did not take what the competitor had heard into account, despite being able to locate the hiding place themselves by the noise.
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Notes Approved no
Call Number Admin @ knut @ Serial 4218
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Author Uher, J.; Asendorpf, J.B.; Call, J.
Title Personality in the behaviour of great apes: temporal stability, cross-situational consistency and coherence in response Type Journal Article
Year (up) 2008 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 75 Issue 1 Pages 99-112
Keywords behaviour prediction; bonobo; bottom-up approach; chimpanzee; gorilla; individual differences; orang-utan; personality; traits
Abstract Using a multidisciplinary approach, the present study complements ethological behaviour measurements with basic theoretical concepts, methods and approaches of the personality psychological trait paradigm. Its adoptability and usefulness for animal studies are tested exemplarily on a sample of 20 zoo-housed great apes (five of each of the following species): bonobos, Pan paniscus; chimpanzees, Pan troglodytes verus; gorillas, Gorilla gorilla gorilla; and orang-utans, Pongo pygmaeus abelii. Data on 76 single trait-relevant behaviours were recorded in a series of 14 laboratory-based situations and in two different group situations. Data collection was repeated completely after a break of 2 weeks within a 60-day period. All behaviour records were sufficiently reliable. Individual- and variable-oriented analyses showed high/substantial temporal stability on different levels of aggregation. Distinctive and stable individual situational and response profiles clarified the importance of situations and of multiple trait-relevant behaviours. The present study calls for a closer collaboration between behavioural biologists and personality psychologists to tap the full potential of animal personality research.
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Call Number Equine Behaviour @ team @ Serial 4278
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Author Hare, B.; Rosati, A.; Kaminski, J.; Bräuer, J.; Call, J.; Tomasello, M.
Title The domestication hypothesis for dogs' skills with human communication: a response to Udell et al. (2008) and Wynne et al. (2008) Type Journal Article
Year (up) 2010 Publication Anim Behav Abbreviated Journal
Volume 79 Issue Pages
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Call Number Equine Behaviour @ team @ Hare2010 Serial 6241
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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 (up) 2011 Publication Ethology Abbreviated Journal Ethology
Volume 117 Issue 8 Pages 675-690
Keywords
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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Publisher Blackwell Publishing Ltd Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 1439-0310 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5409
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Author 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 (up) 2011 Publication Proceedings of the Royal Society B: Biological Sciences Abbreviated Journal
Volume 278 Issue 1710 Pages 1405-1413
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Abstract 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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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5630
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Author MacLean, E.; Matthews, L.; Hare, B.; Nunn, C.; Anderson, R.; Aureli, F.; Brannon, E.; Call, J.; Drea, C.; Emery, N.; Haun, D.; Herrmann, E.; Jacobs, L.; Platt, M.; Rosati, A.; Sandel, A.; Schroepfer, K.; Seed, A.; Tan, J.; van Schaik, C.; Wobber, V.
Title How does cognition evolve? Phylogenetic comparative psychology Type Journal Article
Year (up) 2012 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 15 Issue 2 Pages 223-238
Keywords Biomedizin & Life Sciences
Abstract Now more than ever animal studies have the potential to test hypotheses regarding how cognition evolves. Comparative psychologists have developed new techniques to probe the cognitive mechanisms underlying animal behavior, and they have become increasingly skillful at adapting methodologies to test multiple species. Meanwhile, evolutionary biologists have generated quantitative approaches to investigate the phylogenetic distribution and function of phenotypic traits, including cognition. In particular, phylogenetic methods can quantitatively (1) test whether specific cognitive abilities are correlated with life history (e.g., lifespan), morphology (e.g., brain size), or socio-ecological variables (e.g., social system), (2) measure how strongly phylogenetic relatedness predicts the distribution of cognitive skills across species, and (3) estimate the ancestral state of a given cognitive trait using measures of cognitive performance from extant species. Phylogenetic methods can also be used to guide the selection of species comparisons that offer the strongest tests of a priori predictions of cognitive evolutionary hypotheses (i.e., phylogenetic targeting). Here, we explain how an integration of comparative psychology and evolutionary biology will answer a host of questions regarding the phylogenetic distribution and history of cognitive traits, as well as the evolutionary processes that drove their evolution.
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Publisher Springer Berlin / Heidelberg Place of Publication Editor
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ISSN 1435-9448 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5604
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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 (up) 2012 Publication PLoS One Abbreviated Journal
Volume 7 Issue Pages
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Call Number Equine Behaviour @ team @ Tennie2012 Serial 6289
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