Records |
Author |
Suda, C.; Call, J. |
Title |
Piagetian conservation of discrete quantities in bonobos (Pan paniscus), chimpanzees (Pan troglodytes), and orangutans (Pongo pygmaeus) |
Type |
Journal Article |
Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
8 |
Issue |
4 |
Pages |
220-235 |
Keywords |
Animals; *Behavior, Animal; Female; Hominidae/*psychology; Male; Pan paniscus; Pan troglodytes; Pongo pygmaeus; *Problem Solving |
Abstract |
This study investigated whether physical discreteness helps apes to understand the concept of Piagetian conservation (i.e. the invariance of quantities). Subjects were four bonobos, three chimpanzees, and five orangutans. Apes were tested on their ability to conserve discrete/continuous quantities in an over-conservation procedure in which two unequal quantities of edible rewards underwent various transformations in front of subjects. Subjects were examined to determine whether they could track the larger quantity of reward after the transformation. Comparison between the two types of conservation revealed that tests with bonobos supported the discreteness hypothesis. Bonobos, but neither chimpanzees nor orangutans, performed significantly better with discrete quantities than with continuous ones. The results suggest that at least bonobos could benefit from the discreteness of stimuli in their acquisition of conservation skills. |
Address |
Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. suda@eva.mpg.de |
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English |
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ISSN |
1435-9448 |
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Notes |
PMID:15692813 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2494 |
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Author |
Kaminski, J.; Call, J.; Tomasello, M. |
Title |
Body orientation and face orientation: two factors controlling apes' behavior from humans |
Type |
Journal Article |
Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
7 |
Issue |
4 |
Pages |
216-223 |
Keywords |
Animals; *Attention; *Behavior, Animal; Cognition; *Concept Formation; Face; Facial Expression; Female; Fixation, Ocular; Hominidae/*psychology; Humans; Male; *Nonverbal Communication; *Orientation; Pan paniscus/psychology; Pan troglodytes/psychology; Pongo pygmaeus/psychology; *Posture; Social Perception; Species Specificity |
Abstract |
A number of animal species have evolved the cognitive ability to detect when they are being watched by other individuals. Precisely what kind of information they use to make this determination is unknown. There is particular controversy in the case of the great apes because different studies report conflicting results. In experiment 1, we presented chimpanzees, orangutans, and bonobos with a situation in which they had to request food from a human observer who was in one of various attentional states. She either stared at the ape, faced the ape with her eyes closed, sat with her back towards the ape, or left the room. In experiment 2, we systematically crossed the observer's body and face orientation so that the observer could have her body and/or face oriented either towards or away from the subject. Results indicated that apes produced more behaviors when they were being watched. They did this not only on the basis of whether they could see the experimenter as a whole, but they were sensitive to her body and face orientation separately. These results suggest that body and face orientation encode two different types of information. Whereas face orientation encodes the observer's perceptual access, body orientation encodes the observer's disposition to transfer food. In contrast to the results on body and face orientation, only two of the tested subjects responded to the state of the observer's eyes. |
Address |
Max Planck Institute for Evolutionary Anthropology, Deutscher Plaz 6, 04103 Leipzig, Germany. kaminski@eva.mpg.de |
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1435-9448 |
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Notes |
PMID:15034765 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2538 |
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Author |
Hare, B.; Tomasello, M. |
Title |
Human-like social skills in dogs? |
Type |
Journal Article |
Year |
2005 |
Publication |
Trends in Cognitive Sciences |
Abbreviated Journal |
Trends. Cognit. Sci. |
Volume |
9 |
Issue |
9 |
Pages |
439-444 |
Keywords |
*Animal Communication; Animals; *Behavior, Animal; Cognition/*physiology; Dogs; *Evolution; Humans; *Social Behavior |
Abstract |
Domestic dogs are unusually skilled at reading human social and communicative behavior--even more so than our nearest primate relatives. For example, they use human social and communicative behavior (e.g. a pointing gesture) to find hidden food, and they know what the human can and cannot see in various situations. Recent comparisons between canid species suggest that these unusual social skills have a heritable component and initially evolved during domestication as a result of selection on systems mediating fear and aggression towards humans. Differences in chimpanzee and human temperament suggest that a similar process may have been an important catalyst leading to the evolution of unusual social skills in our own species. The study of convergent evolution provides an exciting opportunity to gain further insights into the evolutionary processes leading to human-like forms of cooperation and communication. |
Address |
Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig, Germany. hare@eva.mpg.de |
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Edition |
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ISSN |
1364-6613 |
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Notes |
PMID:16061417 |
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no |
Call Number |
refbase @ user @ |
Serial |
546 |
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Author |
Tomasello, M.; Call, J. |
Title |
The role of humans in the cognitive development of apes revisited |
Type |
Journal Article |
Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
7 |
Issue |
4 |
Pages |
213-215 |
Keywords |
Animals; *Behavior, Animal; *Cognition; Culture; Hominidae/*psychology; Humans; *Imitative Behavior; Imprinting (Psychology); *Intention; Social Behavior; *Social Environment; Species Specificity |
Abstract |
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Address |
Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. tomas@eva.mpg.de |
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ISSN |
1435-9448 |
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Notes |
PMID:15278733 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2517 |
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Author |
de Waal, F.B.M. |
Title |
Silent invasion: Imanishi's primatology and cultural bias in science |
Type |
Journal Article |
Year |
2003 |
Publication |
Animal cognition |
Abbreviated Journal |
Anim. Cogn. |
Volume |
6 |
Issue |
4 |
Pages |
293-299 |
Keywords |
Animals; *Behavior, Animal; *Culture; Ecosystem; History, 20th Century; Philosophy; Portraits; *Prejudice; Primates/*psychology; Psychology, Comparative/*history; Research Design/trends |
Abstract |
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Address |
Living Links, Yerkes Primate Center, Emory University, Atlanta, GA 30322, USA. dewaal@emory.edu |
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English |
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ISSN |
1435-9448 |
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Notes |
PMID:14551801 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
178 |
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Author |
Plotnik, J.M.; de Waal, F.B.M.; Reiss, D. |
Title |
Self-recognition in an Asian elephant |
Type |
Journal Article |
Year |
2006 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
Volume |
103 |
Issue |
45 |
Pages |
17053-17057 |
Keywords |
Animals; Asia; *Behavior, Animal; Cognition; Elephants/*psychology; Female; Photic Stimulation |
Abstract |
Considered an indicator of self-awareness, mirror self-recognition (MSR) has long seemed limited to humans and apes. In both phylogeny and human ontogeny, MSR is thought to correlate with higher forms of empathy and altruistic behavior. Apart from humans and apes, dolphins and elephants are also known for such capacities. After the recent discovery of MSR in dolphins (Tursiops truncatus), elephants thus were the next logical candidate species. We exposed three Asian elephants (Elephas maximus) to a large mirror to investigate their responses. Animals that possess MSR typically progress through four stages of behavior when facing a mirror: (i) social responses, (ii) physical inspection (e.g., looking behind the mirror), (iii) repetitive mirror-testing behavior, and (iv) realization of seeing themselves. Visible marks and invisible sham-marks were applied to the elephants' heads to test whether they would pass the litmus “mark test” for MSR in which an individual spontaneously uses a mirror to touch an otherwise imperceptible mark on its own body. Here, we report a successful MSR elephant study and report striking parallels in the progression of responses to mirrors among apes, dolphins, and elephants. These parallels suggest convergent cognitive evolution most likely related to complex sociality and cooperation. |
Address |
Living Links, Yerkes National Primate Research Center, and Department of Psychology, Emory University, 532 North Kligo Circle, Atlanta, GA 30322, USA |
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ISSN |
0027-8424 |
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Notes |
PMID:17075063 |
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no |
Call Number |
refbase @ user @ |
Serial |
408 |
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Author |
Momozawa, Y.; Takeuchi, Y.; Tozaki, T.; Kikusui, T.; Hasegawa, T.; Raudsepp, T.; Chowdhary, B.P.; Kusunose, R.; Mori, Y. |
Title |
SNP detection and radiation hybrid mapping in horses of nine candidate genes for temperament |
Type |
Journal Article |
Year |
2007 |
Publication |
Animal Genetics |
Abbreviated Journal |
Anim Genet |
Volume |
38 |
Issue |
1 |
Pages |
81-83 |
Keywords |
Animals; *Behavior, Animal; Breeding; Horses/*genetics/physiology; *Polymorphism, Single Nucleotide; Radiation Hybrid Mapping; *Temperament |
Abstract |
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Address |
Laboratory of Veterinary Ethology, The University of Tokyo, Tokyo 113-8657, Japan |
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English |
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ISSN |
0268-9146 |
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PMID:17257195 |
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no |
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Serial |
1834 |
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Author |
Marchal, P.; Anderson, J.R. |
Title |
Mirror-image responses in capuchin monkeys (Cebus capucinus): social responses and use of reflected environmental information |
Type |
Journal Article |
Year |
1993 |
Publication |
Folia Primatologica; International Journal of Primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
Volume |
61 |
Issue |
3 |
Pages |
165-173 |
Keywords |
Animals; *Behavior, Animal; Cebus/*psychology; *Cognition; Female; Male; Self Concept; Sex Factors; *Social Behavior |
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Address |
Laboratoire de Psychophysiologie (CNRS URA 1295), Universite Louis-Pasteur, Strasbourg, France |
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ISSN |
0015-5713 |
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PMID:8206423 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4180 |
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Author |
Doligez, B.; Danchin, E.; Clobert, J. |
Title |
Public information and breeding habitat selection in a wild bird population |
Type |
Journal Article |
Year |
2002 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
Volume |
297 |
Issue |
5584 |
Pages |
1168-1170 |
Keywords |
*Animal Migration; Animals; Animals, Wild/physiology; *Behavior, Animal; Cognition; Cues; *Environment; Female; Male; *Nesting Behavior; Probability; *Reproduction; Songbirds/*physiology; Sweden |
Abstract |
According to the “public information” hypothesis, some animal species may monitor the current reproductive success of conspecifics to assess local habitat quality and to choose their own subsequent breeding site. To test this hypothesis experimentally, we manipulated two components of public information, the mean number of offspring raised locally (“quantity”) and their condition (“quality”), in the collared flycatcher Ficedula albicollis. Immigration rate decreased with local offspring quantity but did not depend on local offspring quality, suggesting that immigrants are deprived of information regarding local quality. Conversely, emigration rate increased both when local offspring quantity or quality decreased, suggesting that residents can use both components of public information. |
Address |
Laboratoire d'Ecologie CNRS-UMR 7625, Universite Pierre et Marie Curie, 7 quai Saint Bernard, Batiment A 7eme etage, Case 237, F-75252 Paris Cedex 05, France. blandine.doligez@esh.unibe.ch |
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ISSN |
1095-9203 |
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PMID:12183627 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2841 |
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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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0032-8332 |
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PMID:16432640 |
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Equine Behaviour @ team @ |
Serial |
2810 |
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