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Author de Waal, F.B.M. doi  openurl
  Title A century of getting to know the chimpanzee Type Journal Article
  Year 2005 Publication Nature Abbreviated Journal Nature  
  Volume 437 Issue 7055 Pages 56-59  
  Keywords Aggression; Animals; Behavior, Animal/*physiology; Competitive Behavior; Cooperative Behavior; Female; Humans; Male; Pan troglodytes/genetics/*physiology/psychology; Sexual Behavior, Animal; *Social Behavior  
  Abstract A century of research on chimpanzees, both in their natural habitat and in captivity, has brought these apes socially, emotionally and mentally much closer to us. Parallels and homologues between chimpanzee and human behaviour range from tool-technology and cultural learning to power politics and intercommunity warfare. Few behavioural domains have remained untouched by this increased knowledge, which has dramatically challenged the way we view ourselves. The sequencing of the chimpanzee genome will no doubt bring more surprises and insights. Humans do occupy a special place among the primates, but this place increasingly has to be defined against a backdrop of substantial similarity.  
  Address Living Links, Yerkes National Primate Research Center, Emory University, 954 North Gatewood Road, Atlanta, Georgia 30322, USA. dewaal@emory.edu  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1476-4687 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16136128 Approved no  
  Call Number refbase @ user @ Serial 162  
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Author Brosnan, S.F.; De Waal, F.B.M. doi  openurl
  Title Monkeys reject unequal pay Type Journal Article
  Year 2003 Publication Nature Abbreviated Journal Nature  
  Volume 425 Issue 6955 Pages 297-299  
  Keywords Aging; Animals; Cebus/*psychology; Choice Behavior; *Cooperative Behavior; Female; Male; *Reward; Social Justice  
  Abstract During the evolution of cooperation it may have become critical for individuals to compare their own efforts and pay-offs with those of others. Negative reactions may occur when expectations are violated. One theory proposes that aversion to inequity can explain human cooperation within the bounds of the rational choice model, and may in fact be more inclusive than previous explanations. Although there exists substantial cultural variation in its particulars, this 'sense of fairness' is probably a human universal that has been shown to prevail in a wide variety of circumstances. However, we are not the only cooperative animals, hence inequity aversion may not be uniquely human. Many highly cooperative nonhuman species seem guided by a set of expectations about the outcome of cooperation and the division of resources. Here we demonstrate that a nonhuman primate, the brown capuchin monkey (Cebus apella), responds negatively to unequal reward distribution in exchanges with a human experimenter. Monkeys refused to participate if they witnessed a conspecific obtain a more attractive reward for equal effort, an effect amplified if the partner received such a reward without any effort at all. These reactions support an early evolutionary origin of inequity aversion.  
  Address Living Links, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia 30329, USA. sbrosna@emory.edu  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1476-4687 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:13679918 Approved no  
  Call Number refbase @ user @ Serial 179  
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Author Dyer, F.C. doi  openurl
  Title Animal behaviour: when it pays to waggle Type
  Year 2002 Publication Nature Abbreviated Journal Nature  
  Volume 419 Issue 6910 Pages 885-886  
  Keywords *Animal Communication; Animals; Bees/*physiology; California; Dancing/physiology; Environment; Evolution; Female; Flowers/chemistry; *Food; Gravitation; Lighting; Motor Activity/*physiology; Odors; Seasons; Sunlight  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12410290 Approved no  
  Call Number refbase @ user @ Serial 769  
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Author Whiten, A.; McGrew, W.C. doi  openurl
  Title Is this the first portrayal of tool use by a chimp? Type
  Year 2001 Publication Nature Abbreviated Journal Nature  
  Volume 409 Issue 6816 Pages 12  
  Keywords Animals; *Behavior, Animal; Pan troglodytes/*physiology; Philately  
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  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:11343083 Approved no  
  Call Number refbase @ user @ Serial 739  
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Author de Waal, F.B.; Berger, M.L. doi  openurl
  Title Payment for labour in monkeys Type Journal Article
  Year 2000 Publication Nature Abbreviated Journal Nature  
  Volume 404 Issue 6778 Pages 563  
  Keywords Animals; Cebus/*physiology; *Cooperative Behavior; Evolution; *Feeding Behavior; Female; Male; Reward  
  Abstract  
  Address Living Links, Yerkes Regional Primate Research Center, and Department of Psychology, Emory University, Atlanta, Georgia 30329, USA. dewaal@emory.edu  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:10766228 Approved no  
  Call Number refbase @ user @ Serial 190  
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Author Terrace, H.S. doi  openurl
  Title Chunking by a pigeon in a serial learning task Type Journal Article
  Year 1987 Publication Nature Abbreviated Journal Nature  
  Volume 325 Issue 7000 Pages 149-151  
  Keywords Animals; Cognition/*physiology; Columbidae/*physiology; Feedback; Learning/*physiology; Male  
  Abstract A basic principle of human memory is that lists that can be organized into memorable 'chunks' are easier to remember. Memory span is limited to a roughly constant number of chunks and is to a large extent independent of the amount of informaton contained in each chunk. Depending on the ingenuity of the code used to integrate discrete items into chunks, one can substantially increase the number of items that can be recalled correctly. Newly developed paradigms for studying memory in non-verbal organisms allow comparison of the abilities of human and non-human subjects to memorize lists. Here I present two types of evidence that pigeons 'chunk' 5-element lists whose components (colours and achromatic geometric forms) are clustered into distinct groups. Those lists were learned twice as rapidly as a homogeneous list of colours or heterogeneous lists in which the elements are not clustered. The pigeons were also tested for knowledge of the order of two elements drawn from the 5-element lists. They responded in the correct order only to those subsets that contained a chunk boundary. Thus chunking can be studied profitably in animal subjects; the cognitive processes that allow an organism to form chunks do no presuppose linguistic competence.  
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  ISSN 0028-0836 ISBN Medium  
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  Notes PMID:3808071 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2792  
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Author Whiten, A.; Goodall, J.; McGrew, W.C.; Nishida, T.; Reynolds, V.; Sugiyama, Y.; Tutin, C.E.; Wrangham, R.W.; Boesch, C. doi  openurl
  Title Cultures in chimpanzees Type Journal Article
  Year 1999 Publication Nature Abbreviated Journal Nature  
  Volume 399 Issue 6737 Pages 682-685  
  Keywords Animals; *Behavior, Animal; Cognition; *Culture; Humans; Pan troglodytes/*physiology; Species Specificity  
  Abstract As an increasing number of field studies of chimpanzees (Pan troglodytes) have achieved long-term status across Africa, differences in the behavioural repertoires described have become apparent that suggest there is significant cultural variation. Here we present a systematic synthesis of this information from the seven most long-term studies, which together have accumulated 151 years of chimpanzee observation. This comprehensive analysis reveals patterns of variation that are far more extensive than have previously been documented for any animal species except humans. We find that 39 different behaviour patterns, including tool usage, grooming and courtship behaviours, are customary or habitual in some communities but are absent in others where ecological explanations have been discounted. Among mammalian and avian species, cultural variation has previously been identified only for single behaviour patterns, such as the local dialects of song-birds. The extensive, multiple variations now documented for chimpanzees are thus without parallel. Moreover, the combined repertoire of these behaviour patterns in each chimpanzee community is itself highly distinctive, a phenomenon characteristic of human cultures but previously unrecognised in non-human species.  
  Address Scottish Primate Research Group, School of Psychology, University of St Andrews, UK  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:10385119 Approved no  
  Call Number refbase @ user @ Serial 742  
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Author Parr, L.A.; de Waal, F.B. doi  openurl
  Title Visual kin recognition in chimpanzees Type
  Year 1999 Publication Nature Abbreviated Journal Nature  
  Volume 399 Issue 6737 Pages 647-648  
  Keywords Animals; *Behavior, Animal; Face; Female; Male; Pan troglodytes/*physiology  
  Abstract  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:10385114 Approved no  
  Call Number refbase @ user @ Serial 195  
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Author Gibson, B.M.; Shettleworth, S.J. doi  openurl
  Title Place versus response learning revisited: tests of blocking on the radial maze Type Journal Article
  Year 2005 Publication Behavioral neuroscience Abbreviated Journal Behav Neurosci  
  Volume 119 Issue 2 Pages 567-586  
  Keywords Animals; *Association Learning; Male; *Maze Learning; Memory; Rats; Rats, Long-Evans; Reproducibility of Results  
  Abstract Neurobiological and behavioral research indicates that place learning and response learning occur simultaneously, in parallel. Such findings seem to conflict with theories of associative learning in which different cues compete for learning. The authors conducted place+response training on a radial maze and then tested place learning and response learning separately by reconfiguring the maze in various ways. Consistent with the effects of manipulating place and response systems in the brain (M. G. Packard & J. L. McGaugh, 1996), well-trained rats showed strong place learning and strong response learning. Three experiments using associative blocking paradigms indicated that prior response learning interferes with place learning. Blocking and related tests can be used to better understand how memory systems interact during learning.  
  Address Department of Psychology, University of New Hampshire, Durham, NH 03824-3567, USA. bgibson@cisunix.unh.edu  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0735-7044 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:15839803 Approved no  
  Call Number refbase @ user @ Serial 362  
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Author Hall, C.A.; Cassaday, H.J.; Vincent, C.J.; Derrington, A.M. doi  openurl
  Title Cone excitation ratios correlate with color discrimination performance in the horse (Equus caballus) Type Journal Article
  Year 2006 Publication Journal of comparative psychology (Washington, D.C. : 1983) Abbreviated Journal J Comp Psychol  
  Volume 120 Issue 4 Pages 438-448  
  Keywords Animals; Behavior, Animal; *Color Perception; *Discrimination (Psychology); Discrimination Learning; Horses; Photoreceptors, Vertebrate/*physiology  
  Abstract Six horses (Equus caballus) were trained to discriminate color from grays in a counterbalanced sequence in which lightness cues were irrelevant. Subsequently, the pretrained colors were presented in a different sequence. Two sets of novel colors paired with novel grays were also tested. Performance was just as good in these transfer tests. Once the horse had learned to select the chromatic from the achromatic stimulus, regardless of the specific color, they were immediately able to apply this rule to novel stimuli. In terms of the underlying visual mechanisms, the present study showed for the first time that the spectral sensitivity of horse cone photopigments, measured as cone excitation ratios, was correlated with color discrimination performance, measured as accuracy, repeated errors, and latency of approach.  
  Address School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Southwell, United Kingdom. carol.hall@ntu.ac.uk  
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  Series Volume Series Issue Edition  
  ISSN 0735-7036 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:17115866 Approved no  
  Call Number Serial 1780  
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