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Author Parr, L.A.; Matheson, M.D.; Bernstein, I.S.; De Waal, F.B.M.
Title Grooming down the hierarchy: allogrooming in captive brown capuchin monkeys, Cebus apella Type Journal Article
Year 1997 Publication (up) Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 54 Issue 2 Pages 361-367
Keywords
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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Series Volume Series Issue Edition
ISSN 0003-3472 ISBN Medium
Area Expedition Conference
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.
Title Postconflict third-party affiliation in stumptailed macaques Type Journal Article
Year 2002 Publication (up) Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 63 Issue 2 Pages 209-216
Keywords
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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Notes Approved no
Call Number refbase @ user @ Serial 304
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Author de Waal, F.B.M.
Title Silent invasion: Imanishi's primatology and cultural bias in science Type Journal Article
Year 2003 Publication (up) Animal cognition Abbreviated Journal Anim. Cogn.
Volume 6 Issue 4 Pages 293-299
Keywords Animals; *Behavior, Animal; *Culture; Ecosystem; History, 20th Century; Philosophy; Portraits; *Prejudice; Primates/*psychology; Psychology, Comparative/*history; Research Design/trends
Abstract
Address Living Links, Yerkes Primate Center, Emory University, Atlanta, GA 30322, USA. dewaal@emory.edu
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Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1435-9448 ISBN Medium
Area Expedition Conference
Notes PMID:14551801 Approved no
Call Number refbase @ user @ Serial 178
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Author Plotnik, J.; Nelson, P.A.; de Waal, F.B.M.
Title Visual field information in the face perception of chimpanzees (Pan troglodytes) Type Journal Article
Year 2003 Publication (up) Annals of the New York Academy of Sciences Abbreviated Journal Ann N Y Acad Sci
Volume 1000 Issue Pages 94-98
Keywords Animals; *Facial Expression; Pan troglodytes; Recognition (Psychology); Visual Fields/*physiology; Visual Perception/*physiology
Abstract Evidence for a visual field advantage (VFA) in the face perception of chimpanzees was investigated using a modification of a free-vision task. Four of six chimpanzee subjects previously trained on a computer joystick match-to-sample paradigm were able to distinguish between images of neutral face chimeras consisting of two left sides (LL) or right sides (RR) of the face. While an individual's ability to make this distinction would be unlikely to determine their suitability for the VFA tests, it was important to establish that distinctive information was available in test images. Data were then recorded on their choice of the LL vs. RR chimera as a match to the true, neutral image; a bias for one of these options would indicate an hemispatial visual field advantage. Results suggest that chimpanzees, unlike humans, do not exhibit a left visual field advantage. These results have important implications for studies on laterality and asymmetry in facial signals and their perception in primates.
Address Department of Animal Science, Cornell University, Ithaca, New York 14853, USA. jmp63@cornell.edu
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Series Volume Series Issue Edition
ISSN 0077-8923 ISBN Medium
Area Expedition Conference
Notes PMID:14766624 Approved no
Call Number refbase @ user @ Serial 175
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Author de Waal, F.B.M.
Title Animal communication: panel discussion Type Journal Article
Year 2003 Publication (up) Annals of the New York Academy of Sciences Abbreviated Journal Ann N Y Acad Sci
Volume 1000 Issue Pages 79-87
Keywords Acoustics; Affect; *Animal Communication; Animals
Abstract
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ISSN 0077-8923 ISBN Medium
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Notes PMID:14766621 Approved no
Call Number refbase @ user @ Serial 176
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Author de Waal, F.B.M.
Title Darwin's legacy and the study of primate visual communication Type Journal Article
Year 2003 Publication (up) Annals of the New York Academy of Sciences Abbreviated Journal Ann N Y Acad Sci
Volume 1000 Issue Pages 7-31
Keywords Affect; Aggression/psychology; Animals; Culture; *Evolution; *Facial Expression; Gestures; Grooming; Humans; Laughter; *Nonverbal Communication; Primates/*physiology; Smiling; *Visual Perception
Abstract After Charles Darwin's The Expression of the Emotions in Man and Animals, published in 1872, we had to wait 60 years before the theme of animal expressions was picked up by another astute observer. In 1935, Nadezhda Ladygina-Kohts published a detailed comparison of the expressive behavior of a juvenile chimpanzee and of her own child. After Kohts, we had to wait until the 1960s for modern ethological analyses of primate facial and gestural communication. Again, the focus was on the chimpanzee, but ethograms on other primates appeared as well. Our understanding of the range of expressions in other primates is at present far more advanced than that in Darwin's time. A strong social component has been added: instead of focusing on the expressions per se, they are now often classified according to the social situations in which they typically occur. Initially, quantitative analyses were sequential (i.e., concerned with temporal associations between behavior patterns), and they avoided the language of emotions. I will discuss some of this early work, including my own on the communicative repertoire of the bonobo, a close relative of the chimpanzee (and ourselves). I will provide concrete examples to make the point that there is a much richer matrix of contexts possible than the common behavioral categories of aggression, sex, fear, play, and so on. Primate signaling is a form of negotiation, and previous classifications have ignored the specifics of what animals try to achieve with their exchanges. There is also increasing evidence for signal conventionalization in primates, especially the apes, in both captivity and the field. This process results in group-specific or “cultural” communication patterns.
Address Yerkes Primate Center, and Psychology Department, Emory University, Atlanta, Georgia 30322, USA. dewaal@emory.edu
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ISSN 0077-8923 ISBN Medium
Area Expedition Conference
Notes PMID:14766618 Approved no
Call Number refbase @ user @ Serial 177
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Author Parish, A.R.; De Waal, F.B.
Title The other “closest living relative”. How bonobos (Pan paniscus) challenge traditional assumptions about females, dominance, intra- and intersexual interactions, and hominid evolution Type Journal Article
Year 2000 Publication (up) Annals of the New York Academy of Sciences Abbreviated Journal Ann N Y Acad Sci
Volume 907 Issue Pages 97-113
Keywords Animals; *Evolution; Female; Hominidae/*physiology; Humans; *Interpersonal Relations; Male; Pan paniscus/*physiology; Sexual Behavior, Animal/*physiology
Abstract Chimpanzee (Pan troglodytes) societies are typically characterized as physically aggressive, male-bonded and male-dominated. Their close relatives, the bonobos (Pan paniscus), differ in startling and significant ways. For instance, female bonobos bond with one another, form coalitions, and dominate males. A pattern of reluctance to consider, let alone acknowledge, female dominance in bonobos exists, however. Because both species are equally “man's” closest relative, the bonobo social system complicates models of human evolution that have historically been based upon referents that are male and chimpanzee-like. The bonobo evidence suggests that models of human evolution must be reformulated such that they also accommodate: real and meaningful female bonds; the possibility of systematic female dominance over males; female mating strategies which encompass extra-group paternities; hunting and meat distribution by females; the importance of the sharing of plant foods; affinitive inter-community interactions; males that do not stalk and attack and are not territorial; and flexible social relationships in which philopatry does not necessarily predict bonding pattern.
Address Department of Anthropology, University College London, England
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Series Volume Series Issue Edition
ISSN 0077-8923 ISBN Medium
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Notes PMID:10818623 Approved no
Call Number refbase @ user @ Serial 189
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Author de Waal, F.B.M.
Title Putting the Altruism Back into Altruism: The Evolution of Empathy Type Journal Article
Year 2008 Publication (up) Annual Review of Psychology Abbreviated Journal Annu Rev Psychol
Volume 59 Issue 1 Pages 279-300
Keywords
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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Corporate Author Thesis
Publisher Annual Reviews Place of Publication Editor
Language Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0066-4308 ISBN Medium
Area Expedition Conference
Notes doi: 10.1146/annurev.psych.59.103006.093625 Approved no
Call Number Equine Behaviour @ team @ Serial 5058
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Author Preston, S.D.; de Waal, F.B.M.
Title Empathy: Its ultimate and proximate bases Type Journal Article
Year 2002 Publication (up) Behavioral and Brain Sciences Abbreviated Journal Behav Brain Sci
Volume 25 Issue 1 Pages 1-20; discussion 20-71
Keywords Adult; Animals; Child; Emotions/physiology; *Empathy; Evolution; Haplorhini; Helping Behavior; Humans; Mental Disorders/physiopathology/psychology; Morals; Personality Development; Phylogeny; Prefrontal Cortex/physiopathology; Socialization
Abstract There is disagreement in the literature about the exact nature of the phenomenon of empathy. There are emotional, cognitive, and conditioning views, applying in varying degrees across species. An adequate description of the ultimate and proximate mechanism can integrate these views. Proximately, the perception of an object's state activates the subject's corresponding representations, which in turn activate somatic and autonomic responses. This mechanism supports basic behaviors (e.g., alarm, social facilitation, vicariousness of emotions, mother-infant responsiveness, and the modeling of competitors and predators) that are crucial for the reproductive success of animals living in groups. The Perception-Action Model (PAM), together with an understanding of how representations change with experience, can explain the major empirical effects in the literature (similarity, familiarity, past experience, explicit teaching, and salience). It can also predict a variety of empathy disorders. The interaction between the PAM and prefrontal functioning can also explain different levels of empathy across species and age groups. This view can advance our evolutionary understanding of empathy beyond inclusive fitness and reciprocal altruism and can explain different levels of empathy across individuals, species, stages of development, and situations.
Address University of Iowa Hospital and Clinics, 2RCP-Neurology Clinic, Iowa City, IA 52242. stephanie-d-preston@uiowa.edu
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Series Volume Series Issue Edition
ISSN 0140-525X ISBN Medium
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Notes PMID:12625087 Approved no
Call Number refbase @ user @ Serial 181
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Author de Waal, F.B.; Johanowicz, D.L.
Title Modification of reconciliation behavior through social experience: an experiment with two macaque species Type Journal Article
Year 1993 Publication (up) Child development Abbreviated Journal Child Dev
Volume 64 Issue 3 Pages 897-908
Keywords Aggression; Animals; *Behavior, Animal; Female; Grooming; *Macaca; *Macaca mulatta; Male; Play and Playthings; *Socialization; Vocalization, Animal
Abstract Reconciliation, defined as a friendly reunion between former opponents shortly after an aggressive encounter, is common in the stumptail macaque (Macaca arctoides) but rare in the rhesus macaque (M. mulatta). Juveniles of the two species were cohoused for 5 months, after which they were observed with conspecifics only. Control rhesus monkeys, matched in age and sex to the experimental subjects, went through the same procedure without exposure to the other species. A threefold increase in the proportion of reconciled fights was measured in the rhesus subjects. The difference emerged gradually during cohousing with the tutor species and was sustained following removal of this species. Other behavior, such as grooming and aggression, decreased over time. It is suggested that the social attitude of the subjects was affected through contact with a species characterized by a more relaxed dominance style.
Address Wisconsin Regional Primate Research Center, University of Wisconsin-Madison
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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0009-3920 ISBN Medium
Area Expedition Conference
Notes PMID:8339702 Approved no
Call Number refbase @ user @ Serial 209
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