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Author Seyfarth, R.M.; Cheney, D.L. openurl 
  Title Cognitive strategies and the representation of social relations by monkeys Type Journal Article
  Year 2001 Publication Nebraska Symposium on Motivation. Nebraska Symposium on Motivation Abbreviated Journal Nebr Symp Motiv  
  Volume 47 Issue (up) Pages 145-177  
  Keywords Adaptation, Biological; Animals; *Evolution; Family; Female; Haplorhini; Male; Memory; Primates; *Selection (Genetics); *Social Behavior; Social Dominance; *Social Perception  
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  Address University of Pennsylvania, USA  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0146-7875 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:11759347 Approved no  
  Call Number refbase @ user @ Serial 345  
Permanent link to this record
 
 
Author Seyfarth, R.M.; Cheney, D.L. openurl 
  Title Meaning and emotion in animal vocalizations Type Journal Article
  Year 2003 Publication Annals of the New York Academy of Sciences Abbreviated Journal Ann N Y Acad Sci  
  Volume 1000 Issue (up) Pages 32-55  
  Keywords Acoustics; *Affect; Animals; Behavior, Animal; *Intention; Posture; Sound Spectrography; *Vocalization, Animal  
  Abstract Historically, a dichotomy has been drawn between the semantic communication of human language and the apparently emotional calls of animals. Current research paints a more complicated picture. Just as scientists have identified elements of human speech that reflect a speaker's emotions, field experiments have shown that the calls of many animals provide listeners with information about objects and events in the environment. Like human speech, therefore, animal vocalizations simultaneously provide others with information that is both semantic and emotional. In support of this conclusion, we review the results of field experiments on the natural vocalizations of African vervet monkeys, diana monkeys, baboons, and suricates (a South African mongoose). Vervet and diana monkeys give acoustically distinct alarm calls in response to the presence of leopards, eagles, and snakes. Each alarm call type elicits a different, adaptive response from others nearby. Field experiments demonstrate that listeners compare these vocalizations not just according to their acoustic properties but also according to the information they convey. Like monkeys, suricates give acoustically distinct alarm calls in response to different predators. Within each predator class, the calls also differ acoustically according to the signaler's perception of urgency. Like speech, therefore, suricate alarm calls convey both semantic and emotional information. The vocalizations of baboons, like those of many birds and mammals, are individually distinctive. As a result, when one baboon hears a sequence of calls exchanged between two or more individuals, the listener acquires information about social events in its group. Baboons, moreover, are skilled “eavesdroppers:” their response to different call sequences provides evidence of the sophisticated information they acquire from other individuals' vocalizations. Baboon males give loud “wahoo” calls during competitive displays. Like other vocalizations, these highly emotional calls provide listeners with information about the caller's dominance rank, age, and competitive ability. Although animal vocalizations, like human speech, simultaneously encode both semantic and emotional information, they differ from language in at least one fundamental respect. Although listeners acquire rich information from a caller's vocalization, callers do not, in the human sense, intend to provide it. Listeners acquire information as an inadvertent consequence of signaler behavior.  
  Address Departments of Psychology and Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. seyfarth@psych.upenn.edu  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0077-8923 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:14766619 Approved no  
  Call Number refbase @ user @ Serial 688  
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Author Seyfarth, R.M.; Cheney, D.L. doi  openurl
  Title Signalers and receivers in animal communication Type Journal Article
  Year 2003 Publication Annual review of psychology Abbreviated Journal Annu Rev Psychol  
  Volume 54 Issue (up) Pages 145-173  
  Keywords Affect; *Animal Communication; Animals; Arousal; Auditory Perception; Motivation; *Social Behavior; Social Environment; Species Specificity; *Vocalization, Animal  
  Abstract In animal communication natural selection favors callers who vocalize to affect the behavior of listeners and listeners who acquire information from vocalizations, using this information to represent their environment. The acquisition of information in the wild is similar to the learning that occurs in laboratory conditioning experiments. It also has some parallels with language. The dichotomous view that animal signals must be either referential or emotional is false, because they can easily be both: The mechanisms that cause a signaler to vocalize do not limit a listener's ability to extract information from the call. The inability of most animals to recognize the mental states of others distinguishes animal communication most clearly from human language. Whereas signalers may vocalize to change a listener's behavior, they do not call to inform others. Listeners acquire information from signalers who do not, in the human sense, intend to provide it.  
  Address Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. seyfarth@psych.upenn.edu  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0066-4308 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12359915 Approved no  
  Call Number refbase @ user @ Serial 690  
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Author Cheney, D.L.; Seyfarth, R.M. openurl 
  Title How Monkeys See the World Type Miscellaneous
  Year 1990 Publication Abbreviated Journal  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4866  
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Author Seyfarth, R.M.; Cheney, D.L. isbn  openurl
  Title The Structure of Social Knowledge in Monkeys Type Book Chapter
  Year 2003 Publication Animal Social Complexity: Intelligence, Culture, and Individualized Societies Abbreviated Journal  
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  Publisher Harvard University Press Place of Publication Cambridge, Massachusetts Editor F. B. M. de Waal; P. L. Tyack  
  Language English Summary Language Original Title Animal Social Complexity: Intelligence, Culture, and Individualized Societies  
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  ISSN ISBN 978-0674009295 Medium  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 464  
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Author Cheney, D.L.; Seyfarth, R.M isbn  openurl
  Title Social and non.social knowledge in vervet monkeys Type Book Chapter
  Year 1988 Publication Machiavellian Intelligence Abbreviated Journal  
  Volume Issue (up) Pages 255-270  
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  Publisher Oxford Univ Press Place of Publication Oxford Editor  
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  ISSN ISBN 0-19-852175-8 Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Byrne+Whiten1988 Serial 4787  
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Author Cheney, D.L.; Seyfarth, R.M. openurl 
  Title The recognition of social alliances among vervet monkeys Type Journal Article
  Year 1986 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 34 Issue (up) Pages 1722-1731  
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  Call Number Equine Behaviour @ team @ Serial 4864  
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Author Cheney, D.L.; Seyfarth, R.M. openurl 
  Title Reconciliation and redirected aggression in vervet monkeys, Behaviour Type Journal Article
  Year 1989 Publication Behaviour Abbreviated Journal Behaviour  
  Volume 110 Issue (up) Pages 258-275  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4865  
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Author Seyfarth, R.M.; Cheney, D.L. url  doi
openurl 
  Title Social cognition Type Journal Article
  Year 2015 Publication Animal Behaviour Abbreviated Journal  
  Volume 103 Issue (up) Pages 191-202  
  Keywords evolution; fitness; future research; personality; selective pressure; skill; social cognition  
  Abstract The social intelligence hypothesis argues that competition and cooperation among individuals have shaped the evolution of cognition in animals. What do we mean by social cognition? Here we suggest that the building blocks of social cognition are a suite of skills, ordered roughly according to the cognitive demands they place upon individuals. These skills allow an animal to recognize others by various means; to recognize and remember other animals' relationships; and, perhaps, to attribute mental states to them. Some skills are elementary and virtually ubiquitous in the animal kingdom; others are more limited in their taxonomic distribution. We treat these skills as the targets of selection, and assume that more complex levels of social cognition evolve only when simpler methods are inadequate. As a result, more complex levels of social cognition indicate greater selective pressures in the past. The presence of each skill can be tested directly through field observations and experiments. In addition, the same methods that have been used to compare social cognition across species can also be used to measure individual differences within species and to test the hypothesis that individual differences in social cognition are linked to differences in reproductive success.  
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  ISSN 0003-3472 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6025  
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Author Cheney, D.L.; Seyfarth, R.M. doi  openurl
  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 (up) 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  
  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 0003-3472 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:10413542 Approved no  
  Call Number refbase @ user @ Serial 346  
Permanent link to this record
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