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Author |
Swartz, K.B. |
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Title |
What is mirror self-recognition in nonhuman primates, and what is it not? |
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Journal Article |
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Year |
1997 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
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Volume |
818 |
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Pages |
64-71 |
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Keywords |
Animals; *Awareness; *Behavior, Animal; *Ego; Primates/*psychology |
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Department of Psychology, Lehman College of the City University of New York, Bronx 10468, USA |
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0077-8923 |
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PMID:9237465 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4135 |
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Author |
Parker, S.T. |
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Title |
A general model for the adaptive function of self-knowledge in animals and humans |
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Journal Article |
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Year |
1997 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
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Volume |
6 |
Issue |
1 |
Pages |
75-86 |
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Keywords |
*Adaptation, Psychological; Animals; *Awareness; Concept Formation; Evolution; Humans; Phylogeny; *Self Concept; Species Specificity |
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Abstract |
This article offers a general definition of self-knowledge that embraces all forms and levels of self-knowledge in animals and humans. It is hypothesized that various levels of self-knowledge constitute an ordinal scale such that each species in a lineage displays the forms of self-knowledge found in related species as well as new forms it and its sister species may have evolved. Likewise, it is hypothesized that these various forms of levels of self-knowledge develop in the sequence in which they evolved. Finally, a general hypothesis for the functional significance of self-knowledge is proposed along with subhypotheses regarding the adaptive significance of various levels of self-knowledge in mammals including human and nonhuman primates. The general hypothesis is that self-knowledge serves as a standard for assessing the qualities of conspecifics compared to those of the self. Such assessment is crucial to deciding among alternative reproductive and subsistence strategies. The qualities that are assessed, which vary across taxa, range from the size and strength of the self to its mathematical or musical abilities. This so-called assessment model of self-knowledge is based on evolutionary biological models for social selection and the role of assessment in animal communication. |
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Anthropology Department, Sonoma State University, Rohnert Park, California, USA. Parker@Sonoma.edu |
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1053-8100 |
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PMID:9170562 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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4160 |
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Author |
unknown |
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Title |
Personality and Personality Disorders |
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Book Chapter |
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Year |
1997 |
Publication |
Behavioural Genetics |
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Pages |
195-207 |
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W. H. Freeman and Company |
Place of Publication |
New York |
Editor |
Plomin, R.; DeFries, J.C.; McClearn, G.E.;Rutter, M. |
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3 |
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Equine Behaviour @ team @ |
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4283 |
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Author |
Beaugrand, J.P |
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Title |
Relative importance of initial individual differences, agonistic experience, and assessment accuracy during hierarchy formation: a simulation study |
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Journal Article |
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Year |
1997 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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Volume |
41 |
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Pages |
177-192 |
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Keywords |
Dominance; Hierarchy formation; RHP; Agonistic experience; Assessment; Self-organization; Simulation |
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Abstract |
This simulation study explores some conditions leading to transitivity within dominance orders. Combinations of three parameters were varied to study their consequences upon hierarchy formation and upon the degree of linearity of resultant structures. The factors studied were: (1) the importance of initial resource holding potentials (RHPs); (2) changes brought in RHPs by successive victories and defeats; and (3) accuracy of RHP assessment made by opponents. Results show that initial differences in RHP always lead to perfectly transitive chains whose rank order reflects the importance of initial differences. Even when simulated animals make important errors while assessing each other during round robin tournaments, emerging dominance structures are perfectly linear and ranks obtained in the structure are highly correlated with initial values in RHPs. Moreover, accumulated experiences of victory and/or defeat alone always lead to perfectly linear hierarchies. Their combination with initial individual differences in RHP led to the same conclusion. Even when assessment was far from being perfect, not only perfect chains were formed but initial values in RHPs significantly influenced rank order when the contribution of victory and defeat to RHP was relatively unimportant. The higher the importance of victory and defeat to RHP as compared to that of initial RHP values, the lower was the correlation between initial RHP values and the ranks order reached by individuals in the resultant hierarchies. In general also, the lower the variation within initial RHPs, the lower was the correlation between initial RHPs and ranks in the hierarchy. At a given level of initial RHP dispersion, increasing the contribution of victory and defeat to RHP diminished the correlation between initial RHP values and obtained ranks. In addition, inaccurate assessment reduced the overall correlation, especially when dispersion of initial RHP values was low and the contribution of victory and defeat relatively unimportant. These results shed some light on the controversy about the respective roles of initial individual attributes and that of patterns of resolution in the formation of animal hierarchies. We present the emergence of social order within closed systems as those simulated here as a case of self-organization. |
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Equine Behaviour @ team @ |
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4290 |
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Author |
Tomasello, M.; Call,J |
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Title |
Primate Cognition |
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Book Whole |
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Year |
1997 |
Publication |
Oxford University Press |
Abbreviated Journal |
Oxf. Univ. Pr. |
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Description
Ever since Charles Darwin first formulated his theories on evolution, much research has been conducted in primate cognition. In this book, Michael Tomasello and Josep Call review what is already known about the cognitive skills of nonhuman primates, and assess the current state of our knowledge. They integrate empirical findings on the topic from the beginning of the century to the present, placing this work in theoretical perspective. The first part examines the way primates adapt to their physical world, mostly for the purpose of foraging. The second part lokos at primate social knowledhe and focuses on the adaptations of primates to their social world for purposes of competation and cooperation. In the third section, the authors construct a general theory of primate cognition, distinguishing the cognition in primates from that of other mammals (human in particular). Their broad-ranging theory should provide a guide for future research. Primate Cognition is an enlightening exploration of the cognitive capacities of our nearest primate relatives. It is a useful resource for a eide range of researchers and students in psychology, behavioral biology, primatology, and anthropology. |
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Oxford University Press |
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Oxford |
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9780195106244 |
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Call Number |
Equine Behaviour @ team @ |
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4424 |
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Author |
Roberts, M. |
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Book Whole |
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Year |
1997 |
Publication |
The Man Who Listens to Horses |
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Cited By (since 1996): 17; Export Date: 21 October 2008 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4542 |
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Author |
Kaseda, Y.; Ogawa, H.; Khalil, A.M. |
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Title |
Causes of natal dispersal and emigration and their effects on harem formation in Misaki feral horses |
Type |
Journal Article |
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Year |
1997 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
29 |
Issue |
4 |
Pages |
262-266 |
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Keywords |
Age Factors; Animal Migration; Animals; Animals, Wild; *Behavior, Animal/physiology; Female; Horses/*physiology/psychology; Male; Reproduction; Seasons; Sexual Behavior, Animal; *Social Behavior |
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Misaki feral horses were separated into 2 herds and the difference between dispersal from natal group (natal dispersal) and dispersal from natal area (natal emigration) was studied. The causes of dispersal and emigration and their effects on harem formation were studied 1979-1994. The number of horses ranged from 73 (mature males: 8, mature females: 26, young males: 8, young females: 3, colt foals: 6, filly foals: 10 and geldings: 12) in 1979 and 86 (mature males: 14, mature females: 37, young males: 12, young females: 7, colt foals: 5, filly foals: 7 and geldings: 4) in 1994 when the present study ended. All 29 males which survived to age 4 years and 58 females which survived to age 3 years left their natal or mother groups at age one to 3. Seventeen of 22 dispersing males and 29 of 39 dispersing females left their natal groups around the birth of their siblings and significant correlations were found between natal dispersal and birth of a sibling. The number of emigrating young males correlated negatively and significantly with the total number of young males in another herd and the number of emigrating young females correlated positively and significantly with the total number of young females in the natal herd. All 13 emigrating stallions which survived to age 5 years formed stable harem groups and a significant correlation was found between natal emigration and harem formation. Twenty-three of 35 resident mares formed stable consort relations with harem stallions and a significant correlation was found between residence and formation of stable consort relations. |
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Faculty of Agriculture, Miyazaki University, Miyazaki-shi, 889-21, Japan |
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0425-1644 |
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Notes |
PMID:15338905 |
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Call Number |
Equine Behaviour @ team @ |
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4630 |
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Author |
Lefebvre, L.; Whittle, P.; Lascaris, E.; Finkelstein, A. |
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Title |
Feeding innovations and forebrain size in birds |
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Journal Article |
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Year |
1997 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
53 |
Issue |
3 |
Pages |
549-560 |
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The links between ecology, behavioural plasticity and brain size are often tested via the comparative method. Given the problems in interpretating comparative tests of learning and cognition, however, alternative measures of plasticity need to be developed. From the short notes section of nine ornithological journals, two separate, exhaustive data sets have been collated on opportunistic foraging innovations in birds of North America (1973-1993;N=196) and the British Isles (1983-1993;N=126). Both the absolute and relative frequencies (corrected for species number per order) of innovations differ between bird orders in a similar fashion in the two geographical zones. Absolute and relative frequency of innovations per order are also related to two measures of relative forebrain size in the two zones. The study confirms predicted trends linking opportunism, brain size and rate of structural evolution. It also suggests that innovation rate in the field may be a useful measure of behavioural plasticity. |
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0003-3472 |
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Equine Behaviour @ team @ |
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4740 |
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Author |
Wolff, A.; Hausberger, M.; Le Scolan, N. |
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Title |
Experimental tests to assess emotionality in horses |
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Journal Article |
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Year |
1997 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
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40 |
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3 |
Pages |
209-221 |
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Emotivity; Gregariousness; Horse; Neophobia; Open-field |
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Different tests were used to assess different aspects of the emotionality of 1-3 year-old horses: arena test; a [`]novel object' test; and a handling test. In reaction to the test situations no important differences were observed according to age or sex in the behaviour patterns, but clear individual differences were observed within these classes. The arena test seemed to reveal the degree of gregariousness of the animals whereas the results in the two other tests were correlated and seemed to reflect an inherent degree of fearfulness in the horse. Indices were developed that enabled to rank the animals, by taking into account all behaviour patterns shown. Such individual characteristics might have some genetic basis: half-siblings tended to behave the same way in most cases. |
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0376-6357 |
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Equine Behaviour @ team @ |
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5018 |
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Author |
Slabbert, J.M.; Rasa, O.A.E. |
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Title |
Observational learning of an acquired maternal behaviour pattern by working dog pups: an alternative training method? |
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Journal Article |
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Year |
1997 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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53 |
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4 |
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309-316 |
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Dog; Learning; Parental behaviour; Narcotics |
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German shepherd pups from untrained bitches and bitches trained in the location of narcotics were either separated from their mothers at 6 weeks (standard raised) or at 3 months of age (extended maternal care). Pups with extended maternal care which were allowed to observe their trained mothers locating and retrieving a sachet of odour-producing narcotic between the ages of 6 and 12 weeks performed the same task significantly better than non-exposed pups when tested at the age of 6 months, without further reinforcement during the interim period. This difference in performance was independent of the duration of maternal care or maternal origin of the pups and was attributed to differences in early experience acquired through observational learning. |
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0168-1591 |
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Equine Behaviour @ team @ |
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5225 |
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