| Records |
| Author |
Corr, J.A. |
| Title |
Nuns and monkeys: investigating the behavior of our oldest old |
Type |
Journal Article |
| Year |
2004 |
Publication |
Science of Aging Knowledge Environment : SAGE KE |
Abbreviated Journal |
Sci Aging Knowledge Environ |
Volume  |
2004 |
Issue |
41 |
Pages |
pe38 |
| Keywords |
Aged; Aged, 80 and over/*physiology; Aging/*physiology; Animals; Behavior/*physiology; Humans; Macaca mulatta |
| Abstract |
The use of nonhuman primates, particularly rhesus macaques (Macaca mulatta), as the best model for human physiological and cognitive aging is broadly accepted. Studies employing nonhuman primates to investigate behavioral changes that may occur with increasing age, however, are not common mostly because of the unavailability of appropriate subjects. Recent longitudinal human studies suggest that individual personality might play a large role in aging “successfully” and in the retention of high levels of cognition into old age. As a result of the demographic trend of increasing numbers of aged monkeys and apes in captivity, an opportunity exists to further investigate behavioral aging using the monkey model. |
| Address |
Department of Anthropology, Grand Valley State University, Allendale, MI 49401, USA. corrj@gvsu.edu |
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English |
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| ISSN |
1539-6150 |
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| Notes |
PMID:15483334 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2828 |
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| Author |
Fox, N.A. |
| Title |
Temperament and early experience form social behavior |
Type |
Journal Article |
| Year |
2004 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
| Volume |
1038 |
Issue |
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Pages |
171-178 |
| Keywords |
Adult; Animals; Child; Child Behavior Disorders/physiopathology; Fear/physiology; Humans; Individuality; Infant; Learning/*physiology; *Personality Development; *Social Behavior; Temperament/*physiology |
| Abstract |
Individual differences in the way persons respond to stimulation can have important consequences for their ability to learn and their choice of vocation. Temperament is the study of such individual differences, being thought of as the behavioral style of an individual. Common to all approaches in the study of temperament are the notions that it can be identified in infancy, is fairly stable across development, and influences adult personality. We have identified a specific temperament type in infancy that involves heightened distress to novel and unfamiliar stimuli. Infants who exhibit this temperament are likely, as they get older, to display behavioral inhibition-wariness and heightened vigilance of the unfamiliar-particularly in social situations. Our work has also described the underlying biology of this temperament and has linked it to neural systems supporting fear responses in animals. Children displaying behavioral inhibition are at-risk for behavioral problems related to anxiety and social withdrawal. |
| Address |
Institute for Child Study, Department of Human Development, University of Maryland, 3304 Benjamin Building, College Park, MD 20742-1131, USA. nf4@umail.umd.edu |
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English |
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| ISSN |
0077-8923 |
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| Notes |
PMID:15838111 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4131 |
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| Author |
Zhang, T.-Y.; Parent, C.; Weaver, I.; Meaney, M.J. |
| Title |
Maternal programming of individual differences in defensive responses in the rat |
Type |
Journal Article |
| Year |
2004 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
| Volume |
1032 |
Issue |
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Pages |
85-103 |
| Keywords |
Adaptation, Biological; Aggression/*physiology; Animals; Evolution; Female; Gene Expression/physiology; Humans; Individuality; *Maternal Behavior; Phenotype; Pregnancy; Prenatal Exposure Delayed Effects; Rats; Stress, Psychological/physiopathology |
| Abstract |
This paper describes the results of a series of studies showing that variations in mother-pup interactions program the development of individual differences in behavioral and endocrine stress responses in the rat. These effects are associated with altered expression of genes in brain regions, such as the amygdala, hippocampus, and hypothalamus, that regulate the expression of stress responses. Studies from evolutionary biology suggest that such “maternal effects” are common and often associated with variations in the quality of the maternal environment. Together these findings suggest an epigenetic process whereby the experience of the mother alters the nature of the parent-offspring interactions and thus the phenotype of the offspring. |
| Address |
McGill Program for the Study of Behavior, Genes and Environment, Douglas Hospital Research Centre, Department of Psychiatry, McGill University, 6875 boul. LaSalle, Montreal (Quebec), Canada H4H 1R3 |
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English |
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0077-8923 |
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| Notes |
PMID:15677397 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4132 |
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| Author |
Gentner, T.Q. |
| Title |
Neural Systems for Individual Song Recognition in Adult Birds |
Type |
Journal Article |
| Year |
2004 |
Publication |
Ann. N.Y. Acad. Sci. |
Abbreviated Journal |
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| Volume |
1016 |
Issue |
1 |
Pages |
282-302 |
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| Abstract |
The songbird auditory system is an excellent model for neuroethological studies of the mechanisms that govern the perception and cognition of natural stimuli (i.e., song), and the translation of corresponding representations into natural behaviors. One common songbird behavior is the learned recognition of individual conspecific songs. This chapter summarizes the research effort to identify the brain regions and mechanisms mediating individual song recognition in European starlings, a species of songbird. The results of laboratory behavioral studies are reviewed, which show that when adult starlings learn to recognize other individual's songs, they do so by memorizing large sets of song elements, called motifs. Recent data from single neurons in the caudal medial portion of the mesopallium are then reviewed, showing that song recognition learning leads to explicit representation of acoustic features that correspond closely to specific motifs, but only to motifs in the songs that birds have learned to recognize. This suggests that the strength and tuning of high-level auditory object representations, of the sort that presumably underlie many forms of vocal communication, are shaped by each animal's unique experience. |
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10.1196/annals.1298.008 |
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no |
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Equine Behaviour @ team @ |
Serial |
2961 |
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| Author |
Zeitler-Feicht, M. H.; Walker, S.; Buxade, C.; Reiter, K. |
| Title |
Untersuchungen verschiedener Formen der Heuvorlage bei Pferden unter ethologischem Aspekt |
Type |
Book Chapter |
| Year |
2004 |
Publication |
KTBL Schriften |
Abbreviated Journal |
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| Volume |
437 |
Issue |
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Pages |
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no |
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Equine Behaviour @ team @ |
Serial |
5764 |
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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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English |
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1476-4687 |
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| Notes |
PMID:15306809 |
Approved |
no |
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refbase @ user @; Equine Behaviour @ team @ room B 3.029 |
Serial |
352 |
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| Author |
Shettleworth, S.J. |
| Title |
Cognitive science: rank inferred by reason |
Type |
Journal Article |
| Year |
2004 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
430 |
Issue |
7001 |
Pages |
732-733 |
| Keywords |
Animals; Cognition/*physiology; Group Structure; Male; *Social Dominance; Songbirds/*physiology |
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1476-4687 |
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| Notes |
PMID:15306792 |
Approved |
no |
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refbase @ user @ |
Serial |
365 |
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| Author |
Fenton, B.; Ratcliffe, J. |
| Title |
Animal behaviour: eavesdropping on bats |
Type |
Journal Article |
| Year |
2004 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
429 |
Issue |
6992 |
Pages |
612-613 |
| Keywords |
Acoustics; Animals; Chiroptera/anatomy & histology/classification/genetics/*physiology; Echolocation/*physiology; *Evolution; Phylogeny; Predatory Behavior/physiology; Species Specificity |
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1476-4687 |
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| Notes |
PMID:15190335 |
Approved |
no |
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refbase @ user @ |
Serial |
500 |
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| Author |
Proudman, C.; Pinchbeck, G.; Clegg, P.; French, N. |
| Title |
Equine welfare: risk of horses falling in the Grand National |
Type |
Journal Article |
| Year |
2004 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
428 |
Issue |
6981 |
Pages |
385-386 |
| Keywords |
Accidental Falls/prevention & control/*statistics & numerical data; Animal Welfare; Animals; Great Britain; Horse Diseases/prevention & control; Horses/*physiology; Odds Ratio; Risk Assessment; *Sports |
| Abstract |
As in other competitive sports, the famous Grand National steeplechase, which is held at Aintree in the United Kingdom and is watched by 600 million people worldwide, sometimes results in injury. By analysing data from the past 15 Grand National races (consisting of 560 starts by horses), we are able to identify several factors that are significantly associated with failure to complete the race: no previous experience of the course and its unique obstacles, unfavourable ground conditions (too soft or too hard), a large number of runners, and the length of the odds ('starting price'). We also find that there is an increased risk of falling at the first fence and at the jump known as Becher's Brook, which has a ditch on the landing side. Our findings indicate ways in which the Grand National could be made safer for horses and illustrate how epidemiological analysis might contribute to preventing injury in competitive sport. |
| Address |
Epidemiology Group, Faculty of Veterinary Science, University of Liverpool, Leahurst, Neston, Wirral CH64 7TE, UK. c.j.proudman@liverpool.ac.uk |
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1476-4687 |
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| Notes |
PMID:15042079 |
Approved |
no |
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refbase @ user @ |
Serial |
535 |
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| Author |
Kostova, T.; Carlsen, T.; Kercher, J. |
| Title |
Individual-based spatially-explicit model of an herbivore and its resource: the effect of habitat reduction and fragmentation |
Type |
Journal Article |
| Year |
2004 |
Publication |
Comptes Rendus Biologies |
Abbreviated Journal |
Compt. Rend. Biol. |
| Volume |
327 |
Issue |
3 |
Pages |
261-276 |
| Keywords |
complexity; population dynamics; self-organization; population waves; individual-based models |
| Abstract |
We present an individual-based, spatially-explicit model of the dynamics of a small mammal and its resource. The life histories of each individual animal are modeled separately. The individuals can have the status of residents or wanderers and belong to behaviorally differing groups of juveniles or adults and males or females. Their territory defending and monogamous behavior is taken into consideration. The resource, green vegetation, grows depending on seasonal climatic characteristics and is diminished due to the herbivore's grazing. Other specifics such as a varying personal energetic level due to feeding and starvation of the individuals, mating preferences, avoidance of competitors, dispersal of juveniles, as a result of site overgrazing, etc., are included in the model. We determined model parameters from real data for the species Microtus ochrogaster (prairie vole). The simulations are done for a case of an enclosed habitat without predators or other species competitors. The goal of the study is to find the relation between size of habitat and population persistence. The experiments with the model show the populations go extinct due to severe overgrazing, but that the length of population persistence depends on the area of the habitat as well as on the presence of fragmentation. Additionally, the total population size of the vole population obtained during the simulations exhibits yearly fluctuations as well as multi-yearly peaks of fluctuations. This dynamics is similar to the one observed in prairie vole field studies. To cite this article: T. Kostova et al., C. R. Biologies 327 (2004). |
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refbase @ user @ |
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801 |
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