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Author Call, J.
Title A fish-eye lens for comparative studies: broadening the scope of animal cognition Type Journal Article
Year 2002 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 5 Issue (down) 1 Pages 15-16
Keywords Animals; Behavior, Animal/physiology; Cognition/*physiology; Fishes/*physiology; Species Specificity
Abstract ? is the article no longer available?
Address call@eva.mpg.de
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Language English Summary Language Original Title
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ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:11957396 Approved no
Call Number Equine Behaviour @ team @ Serial 2616
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Author Vlamings, P.H.J.M.; Uher, J.; Call, J.
Title How the great apes (Pan troglodytes, Pongo pygmaeus, Pan paniscus, and Gorilla gorilla) perform on the reversed contingency task: the effects of food quantity and food visibility Type Journal Article
Year 2006 Publication Journal of Experimental Psychology. Animal Behavior Processes Abbreviated Journal J Exp Psychol Anim Behav Process
Volume 32 Issue (down) 1 Pages 60-70
Keywords Age Factors; Animals; Behavior, Animal/physiology; Cognition; Conditioning (Psychology); Female; *Food; Gorilla gorilla/*psychology; *Learning; Male; Pan paniscus/*psychology; Pan troglodytes/*psychology; Pongo pygmaeus/*psychology; *Visual Perception
Abstract S. T. Boysen and G. G. Berntson (1995) found that chimpanzees performed poorly on a reversed contingency task in which they had to point to the smaller of 2 food quantities to acquire the larger quantity. The authors compared the performance of 4 great ape species (Pan troglodytes, Pongo pygmaeus, Pan paniscus, and Gorilla gorilla) on the reversed contingency task while manipulating food quantity (0-4 or 1-4) and food visibility (visible pairs or covered pairs). Results showed no systematic species differences but large individual differences. Some individuals of each species were able to solve the reversed contingency task. Both quantity and visibility of the food items had a significant effect on performance. Subjects performed better when the disparity between quantities was smaller and the quantities were not directly visible.
Address Department of Developmental and Comparative Psychology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. p.vlamings@psychology.unimaas.nl
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ISSN 0097-7403 ISBN Medium
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Notes PMID:16435965 Approved no
Call Number Equine Behaviour @ team @ Serial 2765
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Author Call, J.; Agnetta, B.; Tomasello, M.
Title Cues that chimpanzees do and do not use to find hidden objects Type Journal Article
Year 2000 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 3 Issue (down) 1 Pages 23-34
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Abstract Chimpanzees follow conspecific and human gaze direction reliably in some situations, but very few chimpanzees reliably use gaze direction or other communicative signals to locate hidden food in the object-choice task. Three studies aimed at exploring factors that affect chimpanzee performance in this task are reported. In the first study, vocalizations and other noises facilitated the performance of some chimpanzees (only a minority). In the second study, various behavioral cues were given in which a human experimenter either touched, approached, or actually lifted and looked under the container where the food was hidden. Each of these cues led to enhanced performance for only a very few individuals. In the third study – a replication with some methodological improvements of a previous experiment – chimpanzees were confronted with two experimenters giving conflicting cues about the location of the hidden food, with one of them (the knower) having witnessed the hiding process and the other (the guesser) not. In the crucial test in which a third experimenter did the hiding, no chimpanzee found the food at above chance levels. Overall, in all three studies, by far the best performers were two individuals who had been raised in infancy by humans. It thus seems that while chimpanzees are very good at “behavior reading” of various sorts, including gaze following, they do not understand the communicative intentions (informative intentions) behind the looking and gesturing of others – with the possible exception of enculturated chimpanzees, who still do not understand the differential significance of looking and gesturing done by people who have different knowledge about states of affairs in the world.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 3176
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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 2008 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 11 Issue (down) 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 2008 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 75 Issue (down) 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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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4278
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Author Abramson, J.Z.; Hernández-Lloreda, V.; Call, J.; Colmenares, F.
Title Experimental evidence for action imitation in killer whales (Orcinus orca) Type Journal Article
Year 2013 Publication Abbreviated Journal Animal Cognition
Volume 16 Issue (down) 1 Pages 11-22
Keywords Social learning; Imitation; ‘Do-as-other-does’ test; Animal culture; Killer whales
Abstract Comparative experimental studies of imitative learning have focused mainly on primates and birds. However, cetaceans are promising candidates to display imitative learning as they have evolved in socioecological settings that have selected for large brains, complex sociality, and coordinated predatory tactics. Here we tested imitative learning in killer whales, Orcinus orca. We used a ‘do-as-other-does’ paradigm in which 3 subjects witnessed a conspecific demonstrator’s performance that included 15 familiar and 4 novel behaviours. The three subjects (1) learned the copy command signal ‘Do that’ very quickly, that is, 20 trials on average; (2) copied 100 % of the demonstrator’s familiar and novel actions; (3) achieved full matches in the first attempt for 8–13 familiar behaviours (out of 15) and for the 2 novel behaviours (out of 2) in one subject; and (4) took no longer than 8 trials to accurately copy any familiar behaviour, and no longer than 16 trials to copy any novel behaviour. This study provides experimental evidence for body imitation, including production imitation, in killer whales that is comparable to that observed in dolphins tested under similar conditions. These findings suggest that imitative learning may underpin some of the group-specific traditions reported in killer whales in the field.
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Publisher Springer-Verlag Place of Publication Editor
Language English Summary Language Original Title
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ISSN 1435-9448 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5695
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Author 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 (down) 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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Call Number refbase @ user @ Serial 3430
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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? Abbreviated Journal
Volume Issue (down) Pages 371-384
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Publisher Oxford University Press Place of Publication Oxford Editor Nudds, M.; Hurley, S.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4094
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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 2010 Publication Anim Behav Abbreviated Journal
Volume 79 Issue (down) Pages
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Call Number Equine Behaviour @ team @ Hare2010 Serial 6241
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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 Abbreviated Journal
Volume 7 Issue (down) Pages
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Call Number Equine Behaviour @ team @ Tennie2012 Serial 6289
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