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Author de Waal, F.B.M. openurl 
  Title Animal Social Conflict Type Miscellaneous
  Year 1993 Publication Abbreviated Journal  
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  Call Number Equine Behaviour @ team @ Serial 4894  
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Author de Waal, F.B.M. openurl 
  Title Peacemaking Among Primates Type Miscellaneous
  Year 1989 Publication Abbreviated Journal  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4924  
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Author Bonnie, K.E.; Horner, V.; Whiten, A.; de Waal, F.B.M. doi  openurl
  Title Spread of arbitrary conventions among chimpanzees: a controlled experiment Type Journal Article
  Year 2007 Publication Proceedings. Biological sciences / The Royal Society Abbreviated Journal Proc Biol Sci  
  Volume 274 Issue 1608 Pages 367-372  
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  Abstract Wild chimpanzees (Pan troglodytes) have a rich cultural repertoire--traditions common in some communities are not present in others. The majority of reports describe functional, material traditions, such as tool use. Arbitrary conventions have received far less attention. In the same way that observations of material culture in wild apes led to experiments to confirm social transmission and identify underlying learning mechanisms, experiments investigating how arbitrary habits or conventions arise and spread within a group are also required. The few relevant experimental studies reported thus far have relied on cross-species (i.e. human-ape) interaction offering limited ecological validity, and no study has successfully generated a tradition not involving tool use in an established group. We seeded one of two rewarded alternative endpoints to a complex sequence of behaviour in each of two chimpanzee groups. Each sequence spread in the group in which it was seeded, with many individuals unambiguously adopting the sequence demonstrated by a group member. In one group, the alternative sequence was discovered by a low ranking female, but was not learned by others. Since the action-sequences lacked meaning before the experiment and had no logical connection with reward, chimpanzees must have extracted both the form and benefits of these sequences through observation of others.  
  Address Living Links, Yerkes National Primate Research Center, Atlanta, GA 30329, USA. kebonni@emory.edu  
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  ISSN 0962-8452 ISBN Medium  
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  Notes PMID:17164200 Approved no  
  Call Number refbase @ user @ Serial 157  
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Author Dindo, M.; De Waal, F.B.M. doi  openurl
  Title Partner effects on food consumption in brown capuchin monkeys Type Journal Article
  Year 2007 Publication American journal of primatology Abbreviated Journal Am. J. Primatol.  
  Volume 69 Issue 4 Pages 448-456  
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  Abstract It has been claimed that capuchin monkeys (Cebus apella) show inequity aversion in relation to food rewards for a simple exchange task. However, other factors may affect the willingness of a monkey to consume foods of high or low value in the presence of a conspecific. In this study, pairs of monkeys were presented with unequally valued foods, but without any task-performance: they simply received the food under four experimental conditions. By looking at the rate of collection and consumption of low-valued cucumber slices we expected to see variation dependent on whether the partner either had 1) cucumber (equity), 2) grape (inequity), 3) inaccessible cucumber or 4) inaccessible grape. Testing 12 adult capuchin monkeys, our findings differed from those of other authors in that the monkeys failed to show negative reactions to inequity, but rather responded with scramble competition (i.e., fast food collection) in the presence of a conspecific without access to food. They also showed facilitated consumption in the presence of a conspecific consuming high-valued food. Possibly, (in)equity plays a different role if food serves as a reward for a task rather than if it is simply made available for consumption. Am. J. Primatol. 69:1-9, 2007. (c) 2006 Wiley-Liss, Inc.  
  Address Living Links, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia  
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  ISSN 0275-2565 ISBN Medium  
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  Notes PMID:17146793 Approved no  
  Call Number refbase @ user @ Serial 158  
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Author Parr, L.A.; Matheson, M.D.; Bernstein, I.S.; De Waal, F.B.M. doi  openurl
  Title Grooming down the hierarchy: allogrooming in captive brown capuchin monkeys, Cebus apella Type Journal Article
  Year 1997 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 54 Issue 2 Pages 361-367  
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  Abstract Observations of captive female brown capuchin monkeys in five groups revealed that grooming is primarily the occupation of dominant females at both the individual and dyadic levels. When categorized according to rank class, alpha females were the only class to perform significantly more grooming than they received. These results are inconsistent with reports on vervets, baboons and macaques, and suggest that grooming in capuchin monkeys may have different functions from those reported for cercopithecine primates. A dyadic analysis revealed, however, that grooming occurred more often between closely ranked females, similar to what is seen in several Old World monkey species. Therefore, some aspects of grooming in capuchins are similar to that seen in Old World monkeys, but the way they distribute grooming is different, which may prompt a re-evaluation of current theories regarding the social function of allogrooming in non-human primates.  
  Address Yerkes Regional Primate Research Center and Department of Psychology, Emory University  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0003-3472 ISBN Medium  
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  Notes PMID:9268468 Approved no  
  Call Number refbase @ user @ Serial 200  
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Author Call, J.; Aureli, F.; de Waal, F.B.M. url  doi
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  Title Postconflict third-party affiliation in stumptailed macaques Type Journal Article
  Year 2002 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 63 Issue 2 Pages 209-216  
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  Abstract Stumptailed macaques, Macaca arctoides, are characterized by high levels of postconflict affiliative contacts between opponents. We investigated the occurrence of postconflict affiliative contacts between opponents and third parties that were not involved in the original conflict. We collected 10-min focal observations during postconflict and control periods in which we recorded all aggressive and affiliative behaviours between opponents and third parties. We distinguished three types of third parties depending on the relationship with the focal animal: own kin, opponent's kin and individuals unrelated to both opponents. We analysed the interactions with third parties separately, while distinguishing two classes of affiliative behaviours: (1) allogrooming and contact sitting and (2) sociosexual behaviours (e.g. genital inspection). The macaques showed differences between postconflict and control periods in their affiliative contacts with third parties. Aggressors received more postconflict grooming and contact sitting from their opponents' kin, received more sociosexual behaviour from their own kin and unrelated individuals, and directed more sociosexual behaviour to unrelated individuals. Victims received and directed less postconflict grooming from and towards their own kin. They received more postconflict sociosexual behaviour from all partners except their own kin and directed more sociosexual behaviour to all partners except the opponent's kin. This study establishes the occurrence of multiple postconflict triadic affiliation in stumptailed macaques, and is the first to show that victims receive contacts from third parties in a cercopithecine species, a behaviour previously described only in chimpanzees. It also highlights the importance of analysing the different affiliative behaviours separately in postconflict situations. Otherwise, many of the patterns we report, especially those involving victims, would have been missed.  
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  Call Number refbase @ user @ Serial 304  
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Author de Waal, F.B.M. isbn  openurl
  Title Chimpanzee politics:power and sex among apes. Type Book Whole
  Year 1982 Publication Abbreviated Journal  
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  Publisher Johns Hopkins University Press Place of Publication Baltimore Editor  
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  ISSN ISBN 978-0801886560 Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4857  
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Author de Waal, F.B.M. url  doi
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  Title Putting the Altruism Back into Altruism: The Evolution of Empathy Type Journal Article
  Year 2008 Publication Annual Review of Psychology Abbreviated Journal Annu Rev Psychol  
  Volume 59 Issue 1 Pages 279-300  
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  Abstract Evolutionary theory postulates that altruistic behavior evolved for the return-benefits it bears the performer. For return-benefits to play a motivational role, however, they need to be experienced by the organism. Motivational analyses should restrict themselves, therefore, to the altruistic impulse and its knowable consequences. Empathy is an ideal candidate mechanism to underlie so-called directed altruism, i.e., altruism in response to anothers's pain, need, or distress. Evidence is accumulating that this mechanism is phylogenetically ancient, probably as old as mammals and birds. Perception of the emotional state of another automatically activates shared representations causing a matching emotional state in the observer. With increasing cognition, state-matching evolved into more complex forms, including concern for the other and perspective-taking. Empathy-induced altruism derives its strength from the emotional stake it offers the self in the other's welfare. The dynamics of the empathy mechanism agree with predictions from kin selection and reciprocal altruism theory.  
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  Publisher Annual Reviews Place of Publication Editor  
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  ISSN 0066-4308 ISBN Medium  
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  Notes doi: 10.1146/annurev.psych.59.103006.093625 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5058  
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Author de Waal, F.B.M.; Aureli, F. openurl 
  Title Consolation, reconciliation, and a possible cognitive difference between macaque and chimpanzee Type Book Chapter
  Year 1996 Publication Reaching into Thought: The Minds of the Great Apes Abbreviated Journal  
  Volume Issue Pages 80–110.  
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  Abstract Russon,A.E.; Bard, K.A.; Parker, S.T.  
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  Publisher Cambridge University Press Place of Publication Cambridge Editor Russon,A.E.; Bard, K.A.; Parker, S.T.  
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  Call Number Equine Behaviour @ team @ Serial 5060  
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Author de Waal, F.B.M.; Ferrari, P.F. url  doi
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  Title Towards a bottom-up perspective on animal and human cognition Type Journal Article
  Year 2010 Publication Trends in Cognitive Sciences Abbreviated Journal Trends Cognit. Sci.  
  Volume 14 Issue 5 Pages 201-207  
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  Abstract Over the last few decades, comparative cognitive research has focused on the pinnacles of mental evolution, asking all-or-nothing questions such as which animals (if any) possess a theory of mind, culture, linguistic abilities, future planning, and so on. Research programs adopting this top-down perspective have often pitted one taxon against another, resulting in sharp dividing lines. Insight into the underlying mechanisms has lagged behind. A dramatic change in focus now seems to be under way, however, with increased appreciation that the basic building blocks of cognition might be shared across a wide range of species. We argue that this bottom-up perspective, which focuses on the constituent capacities underlying larger cognitive phenomena, is more in line with both neuroscience and evolutionary biology.  
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  ISSN 1364-6613 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5857  
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