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Author Bräuer, J.; Call, J.; Tomasello, M.
Title (down) Visual perspective taking in dogs (Canis familiaris) in the presence of barriers Type Journal Article
Year 2004 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.
Volume 88 Issue 3-4 Pages 299-317
Keywords Dogs; Visual perspective taking; Metacognition
Abstract Previous studies have shown that dogs have developed a special sensitivity to the communicative signals and attentional states of humans. The aim of the current study was to further investigate what dogs know about the visual perception of humans and themselves. In the first two experiments we investigated whether dogs were sensitive to the properties of barriers as blocking the visual access of humans. We presented dogs with a situation in which a human forbade them to take a piece of food, but the type and orientation of the barrier allowed the dog to take the food undetected in some conditions. Dogs differentiated between effective and ineffective barriers, based on their orientation or the particular features of the barriers such as size or the presence of window. In the third study we investigated whether dogs know about what they themselves have seen. We presented subjects with two boxes and placed food in one of them. In the Seen condition the location of the food was shown to the dogs while in the Unseen condition dogs were prevented from seeing the destination of the food. Before selecting one of the boxes by pressing a lever, dogs had the opportunity to seek extra information regarding the contents of the boxes, which would be particularly useful in the condition in which they had not seen where the food was hidden. Dogs rarely used the opportunity to seek information about the contents of the box before making their choice in any condition. Therefore, we found no evidence suggesting that dogs have access to what they themselves have seen, which contrasts with the positive evidence about visual perspective taking in others from the first two experiments and previous studies.
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Series Volume Series Issue Edition
ISSN 0168-1591 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4986
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Author Warneken, F.; Tomasello, M.
Title (down) Varieties of altruism in children and chimpanzees Type Abstract
Year 2009 Publication Trends in cognitive sciences Abbreviated Journal Trends Cogn Sci
Volume 13 Issue 9 Pages 397-402
Keywords
Abstract Recent empirical research has shed new light on the perennial question of human altruism. A number of recent studies suggest that from very early in ontogeny young children have a biological predisposition to help others achieve their goals, to share resources with others and to inform others of things helpfully. Humans nearest primate relatives, such as chimpanzees, engage in some but not all of these behaviors: they help others instrumentally, but they are not so inclined to share resources altruistically and they do not inform others of things helpfully. The evolutionary roots of human altruism thus appear to be much more complex than previously supposed.
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Publisher Elsevier Science, Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1364-6613 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ S1364-6613(09)00149-1 DOI - 10.1016/j.tics.2009.06.008 Serial 5608
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Author Call, J.; Tomasello, M.
Title (down) Use of social information in the problem solving of orangutans (<em>Pongo pygmaeus</em>) and human children (<em>Homo sapiens</em>) Type Journal Article
Year 1995 Publication Journal of Comparative Psychology Abbreviated Journal J. Comp. Psychol.
Volume 109 Issue 3 Pages 308-320
Keywords cross species imitative learning in problem solving, human 3–4 yr olds vs orangutans
Abstract Fourteen juvenile and adult orangutans and 24 3- and 4-yr-old children participated in 4 studies on imitative learning in a problem-solving situation. In all studies a simple to operate apparatus was used, but its internal mechanism was hidden from subjects to prevent individual learning. In the 1st study, orangutans observed a human demonstrator perform 1 of 4 actions on the apparatus and obtain a reward; they subsequently showed no signs of imitative learning. Similar results were obtained in a 2nd study in which orangutan demonstrators were used. Similar results were also obtained in a 3rd study in which a human encouraged imitation from an orangutan that had previously been taught to mimic arbitrary human actions. In a 4th study, human 3- and 4-yr-old children learned the task by means of imitation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)
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Publisher US: American Psychological Association Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1939-2087 (Electronic); 0735-7036 (Print) ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Equine Behaviour @ team @ 1995-42883-001 Serial 5448
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Author Tennie, C.; Call, J.; Tomasello, M.
Title (down) Untrained chimpanzees (Pan troglodytes schweinfurthii) fail to imitate novel actions Type Journal Article
Year 2012 Publication PLoS One Abbreviated Journal
Volume 7 Issue Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Tennie2012 Serial 6289
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Author Tomasello, M.; Call, J.
Title (down) The role of humans in the cognitive development of apes revisited Type Journal Article
Year 2004 Publication Animal Cognition Abbreviated Journal Anim. Cogn.
Volume 7 Issue 4 Pages 213-215
Keywords Animals; *Behavior, Animal; *Cognition; Culture; Hominidae/*psychology; Humans; *Imitative Behavior; Imprinting (Psychology); *Intention; Social Behavior; *Social Environment; Species Specificity
Abstract
Address Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. tomas@eva.mpg.de
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Language English Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:15278733 Approved no
Call Number Equine Behaviour @ team @ Serial 2517
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Author Tomasello, M.; Hare, B.; Fogleman, T.
Title (down) The ontogeny of gaze following in chimpanzees, Pan troglodytes, and rhesus macaques, Macaca mulatta Type Journal Article
Year 2001 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 61 Issue 2 Pages 335-343
Keywords
Abstract Primates follow the gaze direction of conspecifics to outside objects. We followed the ontogeny of this social-cognitive skill for two species: rhesus macaques and chimpanzees. In the first two experiments, using both a cross-sectional and a longitudinal design, we exposed individuals of different ages to a human looking in a specified direction. Rhesus infants first began reliably to follow the direction of this gaze at the end of the early infancy period, at about 5.5 months of age. Chimpanzees did not reliably follow human gaze until 3-4 years; this corresponds to the latter part of the late infancy period for this species. In the third experiment we exposed individuals of the same two species to a human repeatedly looking to the same location (with no special object at that location) to see if subjects would learn to ignore the looks. Only adults of the two species diminished their gaze-following behaviour over trials. This suggests that in the period between infancy and adulthood individuals of both species come to integrate their gaze-following skills with their more general social-cognitive knowledge about other animate beings and their behaviour, and so become able to deploy their gaze-following skills in a more flexible manner.
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Notes Approved no
Call Number refbase @ user @ Serial 596
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Author Hare, B.; Brown, M.; Williamson, C.; Tomasello, M.
Title (down) The domestication of social cognition in dogs Type Journal Article
Year 2002 Publication Science (New York, N.Y.) Abbreviated Journal Science
Volume 298 Issue 5598 Pages 1634-1636
Keywords Animals; *Animals, Domestic; *Behavior, Animal; *Cognition; *Cues; *Dogs; Food; Humans; Memory; Pan troglodytes; *Social Behavior; Species Specificity; Vision; Wolves
Abstract Dogs are more skillful than great apes at a number of tasks in which they must read human communicative signals indicating the location of hidden food. In this study, we found that wolves who were raised by humans do not show these same skills, whereas domestic dog puppies only a few weeks old, even those that have had little human contact, do show these skills. These findings suggest that during the process of domestication, dogs have been selected for a set of social-cognitive abilities that enable them to communicate with humans in unique ways.
Address Department of Anthropology, Harvard University, Cambridge, MA 02138, USA. bhare@fas.harvard.edu
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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1095-9203 ISBN Medium
Area Expedition Conference
Notes PMID:12446914 Approved no
Call Number refbase @ user @ Serial 595
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Author Hare, B.; Rosati, A.; Kaminski, J.; Bräuer, J.; Call, J.; Tomasello, M.
Title (down) 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 Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Hare2010 Serial 6241
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Author Tomasello, M.
Title (down) The cultural origins of human cognition. Type Book Whole
Year 1999 Publication Abbreviated Journal
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Publisher Harvard University Press Place of Publication Camebridge,MA. Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5597
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Author Warneken, F.; Hare, B.; Melis, A.P.; Hanus, D.; Tomasello, M.
Title (down) Spontaneous Altruism by Chimpanzees and Young Children Type Journal Article
Year 2007 Publication PLoS Biol Abbreviated Journal PLoS Biol
Volume 5 Issue 7 Pages e184 EP -
Keywords
Abstract <p>Experimental evidence reveals that chimpanzees will help other unrelated humans and conspecifics without a reward, showing that they share crucial aspects of altruism with humans.</p>
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Publisher Public Library of Science Place of Publication Editor
Language Summary Language Original Title
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5609
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