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| Author | Gardner, A., West, S. A. | ||||
| Title | Cooperation and Punishment, Especially in Humans | Type | Journal Article | ||
| Year | 2004 | Publication | The American Naturalist | Abbreviated Journal | Americ. Natur. |
| Volume | 164 | Issue | 6 | Pages | 753-764 |
| Keywords | kin selection, neighbor-modulated fitness, repression of | ||||
| Abstract | Explaining altruistic cooperation is one of the greatest challenges faced by sociologists, economists, and evolutionary biologists. The problem is determining why an individual would carry out a costly behavior that benefits another. Possible solutions to this problem include kinship, repeated interactions, and policing. Another solution that has recently received much attention is the threat of punishment. However, punishing behavior is often costly for the punisher, and so it is not immediately clear how costly punishment could evolve. We use a direct (neighbor-modulated) fitness approach to analyze when punishment is favored. This methodology reveals that, contrary to previous suggestions, relatedness between interacting individuals is not crucial to explaining cooperation through punishment. In fact, increasing relatedness directly disfavors punishing behavior. Instead, the crucial factor is a positive correlation between the punishment strategy of an individual and the cooperation it receives. This could arise in several ways, such as when facultative adjustment of behavior leads individuals to cooperate more when interacting with individuals who are more likely to punish. More generally, our results provide a clear example of how the fundamental factor driving the evolution of social traits is a correlation between social partners and how this can arise for reasons other than genealogical kinship. |
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| Address | University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, | ||||
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 341 | ||
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| Author | Seyfarth, R.M.; Cheney, D.L.; Bergman, T.J. | ||||
| Title | Primate social cognition and the origins of language | Type | Journal Article | ||
| Year | 2005 | Publication | Trends in Cognitive Sciences | Abbreviated Journal | Trends. Cognit. Sci. |
| Volume | 9 | Issue | 6 | Pages | 264-266 |
| Keywords | Animals; *Cognition; Humans; *Language; Papio; Psychological Theory; Social Behavior; *Social Perception | ||||
| Abstract | Are the cognitive mechanisms underlying language unique, or can similar mechanisms be found in other domains? Recent field experiments demonstrate that baboons' knowledge of their companions' social relationships is based on discrete-valued traits (identity, rank, kinship) that are combined to create a representation of social relations that is hierarchically structured, open-ended, rule-governed, and independent of sensory modality. The mechanisms underlying language might have evolved from the social knowledge of our pre-linguistic primate ancestors. | ||||
| Address | Departments of Biology and Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA. seyfarth@psych.upenn.edu | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 1364-6613 | ISBN | Medium | ||
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| Notes | PMID:15925802 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 343 | ||
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| Author | Cheney, D.L.; Seyfarth, R.M. | ||||
| Title | Recognition of other individuals' social relationships by female baboons | Type | Journal Article | ||
| Year | 1999 | Publication | Animal Behaviour. | Abbreviated Journal | Anim. Behav. |
| Volume | 58 | Issue | 1 | Pages | 67-75 |
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| Abstract | We describe a series of playback experiments designed to test whether free-ranging baboons, Papio cynocephalus ursinus, recognize the calls of other group members and also associate signallers with their close genetic relatives. Pairs of unrelated females were played sequences of calls that mimicked a fight between their relatives. As controls, the same females heard sequences that involved either (1) only the more dominant female's relative or (2) neither of the females' relatives. When call sequences involved their relatives, subjects looked towards the speaker for a longer duration than when the sequences involved nonkin. When the sequences involved the other female's relative, they also looked towards that female. Subjects did not look towards one another when call sequences involved nonkin. Dominant subjects were more likely to supplant their subordinate partners following playbacks of sequences that mimicked a dispute between their relatives than following the two control trials. In contrast, both subjects were more likely to approach one another and to interact in a friendly manner following the two control trials than following the test trial. Results indicate that female baboons recognize the screams and threat grunts not only of their own close relatives but also of unrelated individuals. They also replicate previous studies in suggesting that female monkeys recognize the close associates of other individuals and adjust their interactions with others according to recent events involving individuals other than themselves. Copyright 1999 The Association for the Study of Animal Behaviour. | ||||
| Address | Departments of Biology and Psychology, University of Pennsylvania | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0003-3472 | ISBN | Medium | ||
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| Notes | PMID:10413542 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 346 | ||
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| Author | Cheney, D.L.; Seyfarth, R.M. | ||||
| Title | Reconciliatory grunts by dominant female baboons influence victims' behaviour | Type | Journal Article | ||
| Year | 1997 | Publication | Animal Behaviour. | Abbreviated Journal | Anim. Behav. |
| Volume | 54 | Issue | 2 | Pages | 409-418 |
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| Abstract | Following aggressive interactions, dominant female baboons, Papio cynocephalus ursinusoccasionally grunt to their victims. To examine the effect of these apparently reconciliatory grunts on victims' subsequent behaviour, a series of playback experiments was designed to mimic reconciliation. Victims were played their opponents' grunts in the minutes immediately following a fight and then observed for half an hour. After hearing these grunts, victims approached their former opponents and also tolerated their opponents' approaches at significantly higher rates than they did under control conditions. They were also supplanted by their opponents at significantly lower rates. By contrast, playbacks of control females' grunts did not influence victims' behaviour. Playbacks of reconciliatory grunts did not increase the rate at which opponents approached or initiated friendly interactions with their former victims. Playbacks of reconciliatory grunts, therefore, appeared to influence victims', but not opponents', perception of recent events. | ||||
| Address | Departments of Biology and Psychology, University of Pennsylvania | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0003-3472 | ISBN | Medium | ||
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| Notes | PMID:9268473 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 347 | ||
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| Author | Cheney, D.; Seyfarth, R.; Smuts, B. | ||||
| Title | Social relationships and social cognition in nonhuman primates | Type | Journal Article | ||
| Year | 1986 | Publication | Science (New York, N.Y.) | Abbreviated Journal | Science |
| Volume | 234 | Issue | 4782 | Pages | 1361-1366 |
| Keywords | Animals; *Cognition; Female; Male; Pair Bond; Primates/*physiology; *Social Behavior; Social Dominance; Social Perception | ||||
| Abstract | Complex social relationships among nonhuman primates appear to contribute to individual reproductive success. Experiments with and behavioral observations of natural populations suggest that sophisticated cognitive mechanisms may underlie primate social relationships. Similar capacities are usually less apparent in the nonsocial realm, supporting the view that at least some aspects of primate intelligence evolved to solve the challenges of interacting with conspecifics. | ||||
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| ISSN | 0036-8075 | ISBN | Medium | ||
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| Notes | PMID:3538419 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 349 | ||
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| Author | Paz-y-Miño C. G.; Bond, A.B.; Kamil, A.C.; Balda, R.P. | ||||
| Title | Pinyon jays use transitive inference to predict social dominance | Type | Journal Article | ||
| Year | 2004 | Publication | Nature | Abbreviated Journal | Nature |
| Volume | 430 | Issue | 7001 | Pages | 778-781 |
| Keywords | Animals; Cognition/*physiology; Group Structure; Male; *Social Dominance; Songbirds/*physiology | ||||
| Abstract | Living in large, stable social groups is often considered to favour the evolution of enhanced cognitive abilities, such as recognizing group members, tracking their social status and inferring relationships among them. An individual's place in the social order can be learned through direct interactions with others, but conflicts can be time-consuming and even injurious. Because the number of possible pairwise interactions increases rapidly with group size, members of large social groups will benefit if they can make judgments about relationships on the basis of indirect evidence. Transitive reasoning should therefore be particularly important for social individuals, allowing assessment of relationships from observations of interactions among others. Although a variety of studies have suggested that transitive inference may be used in social settings, the phenomenon has not been demonstrated under controlled conditions in animals. Here we show that highly social pinyon jays (Gymnorhinus cyanocephalus) draw sophisticated inferences about their own dominance status relative to that of strangers that they have observed interacting with known individuals. These results directly demonstrate that animals use transitive inference in social settings and imply that such cognitive capabilities are widespread among social species. | ||||
| Address | Center for Avian Cognition, School of Biological Sciences, University of Nebraska, Lincoln, Nebraska 68588, USA | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 1476-4687 | ISBN | Medium | ||
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| Notes | PMID:15306809 | Approved | no | ||
| Call Number | refbase @ user @; Equine Behaviour @ team @ room B 3.029 | Serial | 352 | ||
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| Author | Gentner, T.Q.; Fenn, K.M.; Margoliash, D.; Nusbaum, H.C. | ||||
| Title | Recursive syntactic pattern learning by songbirds | Type | Journal Article | ||
| Year | 2006 | Publication | Nature | Abbreviated Journal | Nature |
| Volume | 440 | Issue | 7088 | Pages | 1204-1207 |
| Keywords | Acoustic Stimulation; *Animal Communication; Animals; Auditory Perception/*physiology; Humans; *Language; Learning/*physiology; Linguistics; Models, Neurological; Semantics; Starlings/*physiology; Stochastic Processes | ||||
| Abstract | Humans regularly produce new utterances that are understood by other members of the same language community. Linguistic theories account for this ability through the use of syntactic rules (or generative grammars) that describe the acceptable structure of utterances. The recursive, hierarchical embedding of language units (for example, words or phrases within shorter sentences) that is part of the ability to construct new utterances minimally requires a 'context-free' grammar that is more complex than the 'finite-state' grammars thought sufficient to specify the structure of all non-human communication signals. Recent hypotheses make the central claim that the capacity for syntactic recursion forms the computational core of a uniquely human language faculty. Here we show that European starlings (Sturnus vulgaris) accurately recognize acoustic patterns defined by a recursive, self-embedding, context-free grammar. They are also able to classify new patterns defined by the grammar and reliably exclude agrammatical patterns. Thus, the capacity to classify sequences from recursive, centre-embedded grammars is not uniquely human. This finding opens a new range of complex syntactic processing mechanisms to physiological investigation. | ||||
| Address | Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois 60637, USA. tgentner@ucsd.edu | ||||
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| ISSN | 1476-4687 | ISBN | Medium | ||
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| Notes | PMID:16641998 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 353 | ||
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| Author | Arnold, K.; Zuberbuhler, K. | ||||
| Title | Language evolution: semantic combinations in primate calls | Type | Journal Article | ||
| Year | 2006 | Publication | Nature | Abbreviated Journal | Nature |
| Volume | 441 | Issue | 7091 | Pages | 303 |
| Keywords | Animal Migration; Animals; Eagles/physiology; *Evolution; Female; Haplorhini/*physiology; Male; Predatory Behavior; *Semantics; *Vocalization, Animal | ||||
| Abstract | Syntax sets human language apart from other natural communication systems, although its evolutionary origins are obscure. Here we show that free-ranging putty-nosed monkeys combine two vocalizations into different call sequences that are linked to specific external events, such as the presence of a predator and the imminent movement of the group. Our findings indicate that non-human primates can combine calls into higher-order sequences that have a particular meaning. | ||||
| Address | School of Psychology, University of St Andrews, St Andrews KY16 9JP, UK | ||||
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| ISSN | 1476-4687 | ISBN | Medium | ||
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| Notes | PMID:16710411 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 354 | ||
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| Author | Ottoni, E.B.; de Resende, B.D.; Izar, P. | ||||
| Title | Watching the best nutcrackers: what capuchin monkeys (Cebus apella) know about others' tool-using skills | Type | Journal Article | ||
| Year | 2005 | Publication | Animal cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 8 | Issue | 4 | Pages | 215-219 |
| Keywords | Animals; *Association Learning; Cebus/*psychology; *Feeding Behavior; Female; Male; Nuts; *Problem Solving | ||||
| Abstract | The present work is part of a decade-long study on the spontaneous use of stones for cracking hard-shelled nuts by a semi-free-ranging group of brown capuchin monkeys (Cebus apella). Nutcracking events are frequently watched by other individuals--usually younger, less proficient, and that are well tolerated to the point of some scrounging being allowed by the nutcracker. Here we report findings showing that the choice of observational targets is an active, non-random process, and that observers seem to have some understanding of the relative proficiency of their group mates, preferentially watching the more skilled nutcrackers, which enhances not only scrounging payoffs, but also social learning opportunities. | ||||
| Address | Laboratory of Cognitive Ethology, Department of Experimental Psychology, Institute of Psychology, University of Sao Paulo, Brazil. ebottoni@usp.br | ||||
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| ISSN | 1435-9448 | ISBN | Medium | ||
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| Notes | PMID:15719240 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 355 | ||
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| Author | Shettleworth, S.J. | ||||
| Title | Animal behaviour: planning for breakfast | Type | Journal Article | ||
| Year | 2007 | Publication | Nature | Abbreviated Journal | Nature |
| Volume | 445 | Issue | 7130 | Pages | 825-826 |
| Keywords | Animals; Feeding Behavior/*physiology; *Food; Haplorhini/physiology; Memory/physiology; Songbirds/*physiology; Thinking/*physiology | ||||
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| ISSN | 1476-4687 | ISBN | Medium | ||
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| Notes | PMID:17314961 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 356 | ||
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