Records |
Author |
Heschl, A.; Burkart, J. |
Title |
A new mark test for mirror self-recognition in non-human primates |
Type |
Journal Article |
Year |
2006 |
Publication |
Primates |
Abbreviated Journal |
Primates |
Volume |
47 |
Issue |
3 |
Pages |
187-198 |
Keywords |
Animals; *Behavior, Animal; Callithrix/*physiology; Cognition/*physiology; Discrimination (Psychology)/physiology; Female; Male; Photic Stimulation; *Self Concept |
Abstract |
For 30 years Gallup's (Science 167:86-87, 1970) mark test, which consists of confronting a mirror-experienced test animal with its own previously altered mirror image, usually a color mark on forehead, eyebrow or ear, has delivered valuable results about the distribution of visual self-recognition in non-human primates. Chimpanzees, bonobos, orangutans and, less frequently, gorillas can learn to correctly understand the reflection of their body in a mirror. However, the standard version of the mark test is good only for positively proving the existence of self-recognition. Conclusive statements about the lack of self-recognition are more difficult because of the methodological constraints of the test. This situation has led to a persistent controversy about the power of Gallup's original technique. We devised a new variant of the test which permits more unequivocal decisions about both the presence and absence of self-recognition. This new procedure was tested with marmoset monkeys (Callithrix jacchus), following extensive training with mirror-related tasks to facilitate performance in the standard mark test. The results show that a slightly altered mark test with a new marking substance (chocolate cream) can help to reliably discriminate between true negative results, indicating a real lack of ability to recognize oneself in a mirror, from false negative results that are due to methodological particularities of the standard test. Finally, an evolutionary hypothesis is put forward as to why many primates can use a mirror instrumentally – i.e. know how to use it for grasping at hidden objects – while failing in the decisive mark test. |
Address |
Konrad Lorenz Institute for Evolution and Cognition Research, Adolf Lorenz Gasse 2, 3422, Altenberg, Austria. adolf.heschl@uni-graz.at |
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English |
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ISSN |
0032-8332 |
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PMID:16432640 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2810 |
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Author |
Wich, S.A.; de Vries, H. |
Title |
Male monkeys remember which group members have given alarm calls |
Type |
Journal Article |
Year |
2006 |
Publication |
Proceedings. Biological Sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
Volume |
273 |
Issue |
1587 |
Pages |
735-740 |
Keywords |
Animals; Behavior, Animal/*physiology; Cercopithecidae/*physiology/*psychology; Cognition/physiology; Fear/physiology/*psychology; Female; Indonesia; Male; Vocalization, Animal/*physiology |
Abstract |
Primates give alarm calls in response to the presence of predators. In some species, such as the Thomas langur (Presbytis thomasi), males only emit alarm calls if there is an audience. An unanswered question is whether the audience's behaviour influences how long the male will continue his alarm calling. We tested three hypotheses that might explain the alarm calling duration of male Thomas langurs: the fatigue, group size and group member behaviour hypotheses. Fatigue and group size did not influence male alarm calling duration. We found that males only ceased calling shortly after all individuals in his group had given at least one alarm call. This shows that males keep track of and thus remember which group members have called. |
Address |
Behavioural Biology, Utrecht University, Padualaan 14, 3584 Utrecht, The Netherlands. s.a.wich@bio.uu.nl |
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ISSN |
0962-8452 |
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Notes |
PMID:16608694 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2816 |
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Author |
Rizzolatti, G.; Fogassi, L.; Gallese, V. |
Title |
Mirrors of the mind |
Type |
Journal Article |
Year |
2006 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
Volume |
295 |
Issue |
5 |
Pages |
54-61 |
Keywords |
Animals; Brain/*physiology; Cognition/*physiology; Discrimination (Psychology)/physiology; Emotions/physiology; Humans; Imitative Behavior; Learning/*physiology; Mental Processes/*physiology; Motor Activity/physiology; Neurons/physiology; Recognition (Psychology); Sensation/physiology |
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Address |
Neurosciences Department, University of Parma, Italy |
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English |
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Edition |
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ISSN |
0036-8733 |
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Notes |
PMID:17076084 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2829 |
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Author |
Van Schaik, C. |
Title |
Why are some animals so smart? |
Type |
Journal Article |
Year |
2006 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
Volume |
294 |
Issue |
4 |
Pages |
64-71 |
Keywords |
Animals; *Behavior, Animal; Cognition; Conditioning (Psychology); Culture; Environment; Equipment and Supplies; Evolution; Indonesia; *Intelligence; Learning; Pongo pygmaeus/*physiology; Social Behavior |
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Address |
Anthropological Institute and Museum, University of Zurich, Switzerland |
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English |
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ISSN |
0036-8733 |
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Notes |
PMID:16596881 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2830 |
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Author |
Thornton, A.; McAuliffe, K. |
Title |
Teaching in wild meerkats |
Type |
Journal Article |
Year |
2006 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
Volume |
313 |
Issue |
5784 |
Pages |
227-229 |
Keywords |
Animals; *Animals, Wild/psychology; Behavior, Animal; *Herpestidae/psychology; *Learning; *Predatory Behavior; South Africa; *Teaching; Vocalization, Animal |
Abstract |
Despite the obvious benefits of directed mechanisms that facilitate the efficient transfer of skills, there is little critical evidence for teaching in nonhuman animals. Using observational and experimental data, we show that wild meerkats (Suricata suricatta) teach pups prey-handling skills by providing them with opportunities to interact with live prey. In response to changing pup begging calls, helpers alter their prey-provisioning methods as pups grow older, thus accelerating learning without the use of complex cognition. The lack of evidence for teaching in species other than humans may reflect problems in producing unequivocal support for the occurrence of teaching, rather than the absence of teaching. |
Address |
Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. jant2@cam.ac.uk |
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Edition |
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ISSN |
1095-9203 |
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Notes |
PMID:16840701 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2834 |
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Author |
Pennisi, E. |
Title |
Animal cognition. Man's best friend(s) reveal the possible roots of social intelligence |
Type |
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Year |
2006 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
Volume |
312 |
Issue |
5781 |
Pages |
1737 |
Keywords |
Animals; *Cognition; Comprehension; Cooperative Behavior; Cues; Dogs/*psychology; *Evolution; *Intelligence; *Social Behavior |
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1095-9203 |
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Notes |
PMID:16794056 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2835 |
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Author |
Pennisi, E. |
Title |
Animal cognition. Social animals prove their smarts |
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Year |
2006 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
Volume |
312 |
Issue |
5781 |
Pages |
1734-1738 |
Keywords |
Animals; *Behavior, Animal; *Birds; *Cognition; Comprehension; Cues; Food; Hominidae/*psychology; *Intelligence; Learning; Memory; *Social Behavior |
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ISSN |
1095-9203 |
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Notes |
PMID:16794055 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2836 |
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Author |
Reznikova, Z.I. |
Title |
[The study of tool use as the way for general estimation of cognitive abilities in animals] |
Type |
Journal Article |
Year |
2006 |
Publication |
Zhurnal Obshchei Biologii |
Abbreviated Journal |
Zh Obshch Biol |
Volume |
67 |
Issue |
1 |
Pages |
3-22 |
Keywords |
Adaptation, Psychological; Animals; *Cognition; Learning; Pattern Recognition, Physiological; Species Specificity |
Abstract |
Investigation of tool use is an effective way to determine cognitive abilities of animals. This approach raises hypotheses, which delineate limits of animal's competence in understanding of objects properties and interrelations and the influence of individual and social experience on their behaviour. On the basis of brief review of different models of manipulation with objects and tools manufacturing (detaching, subtracting and reshaping) by various animals (from elephants to ants) in natural conditions the experimental data concerning tool usage was considered. Tool behaviour of anumals could be observed rarely and its distribution among different taxons is rather odd. Recent studies have revealed that some species (for instance, bonobos and tamarins) which didn't manipulate tools in wild life appears to be an advanced tool users and even manufacturers in laboratory. Experimental studies of animals tool use include investigation of their ability to use objects physical properties, to categorize objects involved in tool activity by its functional properties, to take forces affecting objects into account, as well as their capacity of planning their actions. The crucial question is whether animals can abstract general principles of relations between objects regardless of the exact circumstances, or they develop specific associations between concerete things and situations. Effectiveness of laboratory methods is estimated in the review basing on comparative studies of tool behaviour, such as “support problem”, “stick problem”, “tube- and tube-trap problem”, and “reserve tube problem”. Levels of social learning, the role of imprinting, and species-specific predisposition to formation of specific domains are discussed. Experimental investigation of tool use allows estimation of the individuals' intelligence in populations. A hypothesis suggesting that strong predisposition to formation of specific associations can serve as a driving force and at the same time as obstacle to animals' activity is discussed. In several “technically gifted” species (such as woodpecker finches, New Caledonian crows, and chimpanzees) tool use seems to be guided by a rapid process of trial and error learning. Individuals that are predisposed to learn specific connections do this too quickly and thus become enslaved by stereotypic solutions of raising problems. |
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Russian |
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0044-4596 |
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Notes |
PMID:16521567 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2857 |
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Author |
Palagi, E.; Cordoni, G.; Borgognini Tarli, S. |
Title |
Possible roles of consolation in captive chimpanzees (Pan troglodytes) |
Type |
Journal Article |
Year |
2006 |
Publication |
American Journal of Physical Anthropology |
Abbreviated Journal |
Am J Phys Anthropol |
Volume |
129 |
Issue |
1 |
Pages |
105-111 |
Keywords |
Animals; Animals, Zoo/*physiology; Empathy; Female; Male; Pan troglodytes/*physiology; *Social Behavior; Stress/physiopathology/veterinary |
Abstract |
Empathy is a necessary prerequisite for the occurrence of consolation. The term “consolation” contains a hypothesis about function, which is distress alleviation. The present study aims to confirm the occurrence of consolation in captive chimpanzees via the post-conflict/matched-control method (PC-MC) and to suggest its possible roles. We collected 273 PC-MC pairs in the group of Pan troglodytes housed in the ZooParc de Beauval (France). We confirmed the presence of consolatory contacts (mean level of consolation, 49.5% +/- 22.3% SEM) in the colony. Consolation rates were significantly higher than reconciliation levels (mean level of reconciliation, 28.9% +/- 16.8% SEM). The level of consolation was greater in the absence of reconciliation than in the presence of it, suggesting that consolation might be an alternative behavior. As friendship and relatedness did not influence the occurrence of consolation, they did not seem to be the best prerequisites for this behavioral mechanism, at least in this chimpanzee colony. Affinitive contacts with third parties were significantly more frequent when the victim called attention to itself during severe aggressions by screaming. These high-pitched sounds seem to be useful in eliciting aid from conspecifics, as occurs in young humans. The occurrence of consolation reduced the likelihood of further attacks among group-members. From this perspective, both victims and consolers most likely gain potential advantages by interacting with each other when aggression is particularly severe, reconciliation is not immediate, and consequently social stress reaches high levels. |
Address |
Centro Interdipartimentale Museo di Storia Naturale e del Territorio, Universita di Pisa, 56010 Calci, Italy. betta.palagi@museo.unipi.it |
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ISSN |
0002-9483 |
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Notes |
PMID:16229027 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
2871 |
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Author |
Mallavarapu, S.; Stoinski, T.S.; Bloomsmith, M.A.; Maple, T.L. |
Title |
Postconflict behavior in captive western lowland gorillas (Gorilla gorilla gorilla) |
Type |
Journal Article |
Year |
2006 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
Volume |
68 |
Issue |
8 |
Pages |
789-801 |
Keywords |
Animals; *Behavior, Animal; *Competitive Behavior; Conflict (Psychology); Female; Gorilla gorilla/*physiology/psychology; Male; Time Factors |
Abstract |
Postconflict (PC) behaviors, including reconciliation and consolation, have been observed in many primate and several nonprimate species. Using the PC-matched control (MC) method, PC behavior was examined in two groups (n=13) of captive western lowland gorillas, a species for which no conflict resolution data have been published. Analyses of 223 conflicts showed significantly more affiliation between former opponents after a conflict when compared to control periods, indicating reconciliation. Results also showed significantly more affiliation between the victim and a third-party after a conflict, indicating consolation. Both solicited and unsolicited consolation were observed. The majority of the affiliative interactions observed for both reconciliation and consolation were social proximity, which suggests that unlike most nonhuman primates, proximity, rather than physical contact, may be the main mechanism for resolving conflicts in western lowland gorillas. PC behavior was not uniform throughout the groups, but rather varied according to dyad type. |
Address |
Zoo Atlanta, Atlanta, Georgia 30315, USA. smallavarapu@zooatlanta.org |
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ISSN |
0275-2565 |
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PMID:16847973 |
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no |
Call Number |
refbase @ user @ |
Serial |
2873 |
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