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Brosnan, S.F.; de Waal, F.B.M. |
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Title  |
Socially learned preferences for differentially rewarded tokens in the brown capuchin monkey (Cebus apella) |
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Journal Article |
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Year |
2004 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
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Volume |
118 |
Issue |
2 |
Pages |
133-139 |
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Keywords |
Animals; Behavior, Animal; Cebus; *Choice Behavior; Female; *Learning; Male; *Reward; *Social Behavior |
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Abstract |
Social learning is assumed to underlie traditions, yet evidence indicating social learning in capuchin monkeys (Cebus apella), which exhibit traditions, is sparse. The authors tested capuchins for their ability to learn the value of novel tokens using a previously familiar token-exchange economy. Capuchins change their preferences in favor of a token worth a high-value food reward after watching a conspecific model exchange 2 differentially rewarded tokens, yet they fail to develop a similar preference after watching tokens paired with foods in the absence of a conspecific model. They also fail to learn that the value of familiar tokens has changed. Information about token value is available in all situations, but capuchins seem to pay more attention in a social situation involving novel tokens. |
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Living Links Center, Yerkes National Primate Research Center, and Graduate Division of Biological and Biomedical Sciences, Emory University, Atlanta, GA 30329, USA. sbrosna@emory.edu |
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0735-7036 |
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PMID:15250800 |
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Call Number |
refbase @ user @ |
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173 |
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Author |
Weaver, A.; de Waal, F.B.M. |
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Title |
The mother-offspring relationship as a template in social development: reconciliation in captive brown capuchins (Cebus apella) |
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Journal Article |
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Year |
2003 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
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Volume |
117 |
Issue |
1 |
Pages |
101-110 |
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Keywords |
*Adaptation, Psychological; Animals; Behavior, Animal/*physiology; Cebus; Conflict (Psychology); Female; Male; *Maternal Behavior; Pilot Projects; *Social Behavior; Statistics, Nonparametric |
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Abstract |
Mother-offspring (MO) relationship quality was investigated to determine its influence on the development of reconciliation--affiliation between opponents shortly after a fight--because it influenceswhat distressed youngsters learn about calming down. Data were longitudinal and cross-sectional observational samples of 38 MO pairs of monkeys across 24 months. An MO relationship quality index (RQI) classified each pair as secure or insecure. Reconciliation emerged in infancy.Secure youngsters had an appeasing conciliatory style, and insecure youngsters had an agitated conciliatory style. Conclusions are that reconciliation develops from the attachment behavior system and MO RQI is related to the particular conciliatory style youngsters develop by affecting how aroused they are by conflict and the subsequent socializing they seek to calm down. |
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Living Links, Yerkes Primate Center and Psychology Department, Emory University, Atlanta, Georgia 30322, USA. dazzlingdolphins@cox.net |
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0735-7036 |
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PMID:12735370 |
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refbase @ user @ |
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180 |
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Author |
Birch, H.G. |
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Title |
The relation of previous experience to insightful problem-solving |
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Journal Article |
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Year |
1945 |
Publication |
Journal of Comparative Psychology |
Abbreviated Journal |
J Comp Psychol |
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38 |
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367-383 |
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Keywords |
Humans; *Problem Solving; *Psychology, Comparative; *PSYCHOLOGY/comparative |
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0021-9940 |
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PMID:21010765 |
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Equine Behaviour @ team @ |
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6554 |
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Cheney, D.L.; Seyfarth, R.M.; Silk, J.B. |
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Title |
The responses of female baboons (Papio cynocephalus ursinus) to anomalous social interactions: evidence for causal reasoning? |
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Journal Article |
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Year |
1995 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
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Volume |
109 |
Issue |
2 |
Pages |
134-141 |
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Keywords |
Animals; Attention; Auditory Perception; *Awareness; *Concept Formation; *Dominance-Subordination; Fear; Female; Hierarchy, Social; Papio/*psychology; *Social Behavior; Social Environment; Vocalization, Animal |
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Baboons' (Papio cynocephalus ursinus) understanding of cause-effect relations in the context of social interactions was examined through use of a playback experiment. Under natural conditions, dominant female baboons often grunt to more subordinate mothers when interacting with their infants. Mothers occasionally respond to these grunts by uttering submissive fear barks. Subjects were played causally inconsistent call sequences in which a lower ranking female apparently grunted to a higher ranking female, and the higher ranking female apparently responded with fear barks. As a control, subjects heard a sequence made causally consistent by the inclusion of grunts from a 3rd female that was dominant to both of the others. Subjects responded significantly more strongly to the causally inconsistent sequences, suggesting that they recognized the factors that cause 1 individual to give submissive vocalizations to another. |
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Department of Biology, University of Pennsylvania, Philadelphia 19104, USA |
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0735-7036 |
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PMID:7758289 |
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refbase @ user @ |
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348 |
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Author |
Gardner, P. |
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Title |
The responses of horses in a discrimination problem |
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Year |
1937 |
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Journal-of-Comparative-Psychology |
Abbreviated Journal |
J Comp Psychol |
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23 |
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305-333 |
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62 horses were trained to obtain food from the one of three boxes which was covered with a black cloth. The position of the box varied from trial to trial in a random order. Learning was apparently in terms of vision, rather than smell. Many errors were due to the line of direction of the horse's movement as it entered the experimental situation. For all animals the learning curve dropped rapidly during the first few trials. There was slightly more rapid learning in younger horses than in older ones. No sex differences were apparent. Percherons made fewer errors than Belgians. Draft horses showed a slight superiority over military and farm horses. The statistical reliability of these differences is not reported. Good retention was evidenced after a period of several months. (PsycINFO Database Record (c) 2012 APA, all rights reserved) |
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Equine Behaviour @ team @ |
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3613 |
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Author |
Vokey, J.R.; Rendall, D.; Tangen, J.M.; Parr, L.A.; de Waal, F.B.M. |
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Title |
Visual kin recognition and family resemblance in chimpanzees (Pan troglodytes) |
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Journal Article |
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2004 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
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Volume |
118 |
Issue |
2 |
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194-199 |
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Animals; Female; Male; Pan troglodytes; Random Allocation; *Recognition (Psychology); *Visual Perception |
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The male-offspring biased visual kin recognition in chimpanzees (Pan troglodytes) reported by L. A. Parr and F. B. M. de Waal (1999) was replicated with human (Homo sapiens) participants and a principal components analysis (PCA) of pixel maps of the chimpanzee face photos. With the same original materials and methods, both humans and the PCA produced the same asymmetry in kin recognition as found with the chimpanzees. The PCA suggested that the asymmetry was a function of differences in the distribution of global characteristics associated with the framing of the faces in the son and daughter test sets. Eliminating potential framing biases, either by cropping the photos tightly to the faces or by rebalancing the recognition foils, eliminated the asymmetry but not human participants' ability to recognize chimpanzee kin. |
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Department of Psychology and Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada. vokey@uleth.ca |
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0735-7036 |
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PMID:15250806 |
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Call Number |
refbase @ user @ |
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171 |
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